what is the purpose of uv lights in pub or club toilets? my mate gwil thinks its because smackheads can't see the vein in uv light, so it stops them shooting up.
I went in the public toilets in a supermarket and all the lights were blue - there was a notice up to say it was to deter vandals. Maybe there was also another reason..............
The UV lights are deigned as a deterrent for users. You can usually tell if a pub has a regular user clientele because the cistern tops and toilet seats will either be missing, or coated in vaseline - again to stop providing a handy work surface for shooting or snorting.