never ever salivate on the pipe, cause that is just so nasty and unnapetizing. It's basically like taking the next persons hit and rubbing nasty germs all over it. I was with a newby type smoker and he managed to "nigger" (sorry but I don't know the other term, and I really did not like saying that) lip a bong. I was like, man what the fuck, i don't wanna see u looking like Pam Anderson (he was a guy ) wiht my bong. So damn nasty.