has anyone tried lighting a cigarette in the filter and smoking it from the other end? man i did that once by mistake when i was in a total dark room. i took just one toke and i instantly felt some fucked up sensation like the one you get when you smoke weed after having snorted speed for 2 days. must be some pretty heavy chemicals in those filters man!!!! but then i ran to the bathroom and spitted after i had gotten "down" after about 5 secs lol =)