went through this yesterday with my bro in law. He says "hey, why you dump that bowl, it's still good?"
I sez, "no it ain't, it's ash"
He digs it out of the damn ashtray and I put a finger on it to crush it, "see? all black, that is cashed"
I fill a new bowl.

The "black hits" are nasty and bad for you.

Shov