When you bought a new camera to do shots of parts of lights (I did)...
When you bulk-buy rechargeable batteries...
When you know what an "Eneloop" is...
and why you want them...
When you can name a dozen Chinese flashlight manufacturers...
When you think about going to Hong Kong for bargain lights...
When you try to learn Chinese to buy direct from the factory...
- You know how much all your lights weigh .
- you look for reasons to go into the attic or basement .
- the Vet says your dog has night blindness .
- Your neighbor thinks you're running an after hours disco.
- Your relatives know what you're getting them for christmas.
-When you get pulled over by a cop ..You notice his light.... you end up showing him your lights . ( he still gives you a ticket )(later you see him on CPF/BLF)
-Your dream vacation is to the Cree factory or the Shot show in Los Vegas
- you get on dating sites and offer to marry a chinese girl in hopes she'll get you a better deal on Nitecore stuff
lmao! this thread is hilarious. And disturbingly enough, many of these apply to me :S
Funny enough, whenever I see a police officer or paramedic now my eyes automatically glance at their hip-holster to see what light they are using :P
Boaz, you always seem to start the most amusing threads...I like it
. Great lists so far. Here's my two pence:
10.) Your laptop is now a desktop because you scavaged the Li-ion batteries out of it.
9.) Apollo asks you to fill in when he needs a day off
8.) You modded your garage door opener with a reverse clicky
7.) Full moons piss you off
6.) Your keychain light could be used to warn ships of impending doom
5.) You know the relative lumens of your TV
4.) The remote control is now a P60 host
3.) You have enough spare batteries to jumpstart a large SUV
2.) Your mailman is now fluent in chinese
1.) Firing up your edc torch requires suntan lotion and a welding mask
:D You touched a nerve with this one!
I think when you start buying equipment to evaluate flashlights, you've gone off the deep end. Light meters, scales, calipers, DMM's with computer hookups. I haven't bought a scale, but I was really tempted. Just so I could weigh flashlights! As if that even really matters. I did buy calipers (they don't have to be plastic if you put tape over one end of the flashlight, though I will admit I didn't think to do this the first time I measured the length of the battery and noticed the calipers getting warm (!!!))
When someone asks you to recommend a flashlight and instead of giving them an answer you start asking them all kinds of questions about preferences that they don't even know about.
When you have a dozen flashlights and you can't think of any you don't need. Or to be more succinct: when you have a dozen flashlights.
When you take pictures of flashlight beams.
Really can relate to my postman having learned Chinese. They've really got to wonder about me. Not that they ever ask, but I can see them asking me what's in the package. "A flashlight." "Didn't you get one of those last week . . . and the week before that . . . and the week before that?"
the only one I have to add..
when your kids see you got another flashlight and they say "another one daddy..how many lights do you have???" (haha my 5 and 7 yr old always say that)
to which I reply "not enough"
If I uttered my mates names while having sex, I think there would be serious questions asked... 
(ok, slight definition difference, owing to geographical location 
)
Cheers
Kinda off-topic, but I am curious: What do Australians call their significant others?
When I read this, I guessed you might be from California* 
(sorry about that..)
In my case, I call her my wife. Some more politically correct people (and unfortunately they seem to be increasing in numbers) might say "partner" whether or not they're married, but that would be very much the exception.
Normally, if somebody uses the "P" word, it means that they're co-habiting, but are not married.
Of course, Australia is quite a large and diverse country, so this will not apply for everybody!
Cheers
* One of my mates at work is from LA, we often joke about "PC Speak"
Very funny and also very disturbing as i can identify myself in some definitions. XD
"The remote control is now a P60 host"
Thanks for the great laugh. :) That was the bullseye in my seratonine dosage system that started dispensing hard. Might not be fun to all but for me was just perfect.
I might add some new:
- Justifiying purchase of unneeded equipment just to test battery capacity and level of degratation with time along with graphs for each owned cell
- Trying to purchase a IR non contact thermometer to assess whole flashlight body temperature and to test which design has greater heatsinging capabilities
- Wrapping 18650 cells with insulating tape to make them not rattle and while at it doing a very nice aesthetic job even knowing the battery would hardly ever be visible but just in case if someone comes by when you have one "exposed" in a charger...
- Having not often used flashlights in a drawer carefully stored in separate bubblewrap bags
- buying outrageous amounts of battery plastic cases
- Carrying more than 1 flashlight on a daily basis
- Carrying one (at least single 18650 flashlight) at some friend wedding (keychain lights doesen't count).
- Taking time and carefully polish SS flashlights on a monthy basis untill mirror finish while wearing cotton gloves to not fingerprint it.
- You often look at your flashlights and wonder if the emitters are cenetered perfectly along with futile attempts to try to measure with a ruler or similar tool
- You carry 2 spare batteries for your lux meter and contemplate new imporved versions on how to build a perfect ligtbox (integrating sphere)
- Start thinking if a multilight holster isn't a bad idea. http://www.manafont.com/product_info.php/multipurpose-military-nylon-oxford-material-pouch-black-p-5254
- Your survivalist needs get you in danger of becoming a knifeaholic and checking which flashlight holster could also accomodate a kinfe without scratching your HA coated flaslighlight. (there is also a risk of trying to match the knife based on the flashlight aesthetics)
- You already know the lumen output needed and color temperature along with tint for every mundane and exotic flashlight task.
- If your led emitter of choice isn't driven up to max specs allowed you immediately realize that the driver must be junk and you start heating your soldering iron before going to find where you have left the "spare" drivers you ordered at DX or KD months ago...
- You buy this: http://www.dealextreme.com/details.dx/sku.27551 to carry a spare 18650 cell with you in true mil-spec fashion.
- Have spare coated and non coated flashlight lenses for p60 hosts or others.
- If you have a bike you also have a bunch of flashlight mounts for various tasks. Also at least once in a while you feel the need to make your own 18650 based tail light with hi-med-lo just in case you encounter fog.
- You must at least own 1 zoomable light and often look at it how badly designed it is along with futile attempts to expose the few strong points in an attempt to justify the purchase.
- You have at least one of each Q3, Q5, R2, R5, MCE, XM-L, and SST or similar flashlights.
- Once in a while you find yourself in a bathroom in total dark assessing relative output of your flashlights while being carefull to not be caught by your wife (or girlfriend) doing it.
- On a foggy day take a walk around your house with various flashlights and look at the beam in fog.
- You have already 10 or more excuses ready to explain the carrying a flashlight with you when someone asks: Wow nice that you have a light with you... but how come you carry one?
- In pure daylight when youre waiting a bus or friends to pick you up you start cleaning the lens of your flashlight just to pass the time. Having a special lens cleaning cloth along it just amplifiy your addiction.
- When you see a great deal on a flashlight you never really wanted you feel the urge to buy it justifying it as a true bargain.
- You have at least 2 headlamps even if you not need a single one.
- When a tailcap squeeeks it is a sign that the flashlight must be cleaned and lubed asap. In serious flashlight addicted individuals some remorse might kick in as how did you even dare let it happen! If this happen in public you feel ashamed.
- You know your lights blindfolded just by hearing the clicky switch sound.
You know you're a flashaholic when you dream about being surrounded by flashlights instead of being surrounded by beautiful women. 
It might be somehow correct if the beautiful women youre draming about carry holsters just in case you might need to check something. :D
The ultimate flashaholic dream for me would be ME surrounded by a bunch of the most beautiful women in the world and all of them had flashlights. 
Isn't that a "fleshaholic" rather than a "flashaholic"? ;)
Good one Don. 
When you can't stop reading all the threads here even when you're suppose to be working.
When you keep asking questions about them.
Does buying your first two (hopefully) decent flashlights days apart and then before they've even been shipped ordering a bunch of batteries, a wf-188, and a little prolux 3834 before batteries have been shipped count ?
Hmm, may need some more batteries, and I'll have to get a power supply and rig a cell holder from plastic conduit for the prolux...
Those are classic signs of a full blown FLASHAHOLIC. :O
I think I qualify. I just bought a couple of 18650s. I don't have any lights that take 18650s. But now I have a justification for buying a new light in that format. And a charger.