heh, my friend is exactly the same. He never cleans his bong water and when I pour it out for him, the fuckin water is pure brown/black. DISGUSTING!!

I told him, 'Dude, you're supposed to pour out the dirty water and use new water! It's common sense!!'
and he said 'You do?' with a really confused look on his face like he really didn't know.

LOL!