i've accidently drank out of an ash can as well... i had a bad habbit of hiding my ash cans (wasn't allowed to smoke at this point) by leaving no ash on the outside... i was meticulously careful about making it look like just another can... after two weeks, i accidently picked it up and drank after running around outside (i was thristy, i basicly chugged) only after the first swallow did it really sit in...

i just drank 2 week old coke with ash and tobacco, accompanied by dirty cigarette butts....

the agent lemon was still worse, but that shit was an extremely close 2nd... i ended up puking about 3 hours...