A friend of mine found a glass bowl lying in the middle of the street one day (not even on the grass, but like the middle of the road) in his neighborhood and it was in really good condition and everything so he just took back to his house and cleaned it, and BAM!, brand-new bowl to add to the collection.

I would just say use your own judgement. If it looks totally nasty, then it probably is, but I'd say still clean it for sanitation's sake.

.....and I smoke resin. I mean it's def. not my first choice, but when I'm just totally out and I need the little pick-me-up, it can come in handy.

But that's coming from a broke bitch.