My friend and I tried something like that once, and yes the peanut butter melted and we ate it anyways. It tasted like shit and we just got nauseous. Then my friend was fooling around and made puking sounds and motions in an attempt to make me throw up. It worked. I couldn't help but to project vomit all over my friend, which caused him to throw up as well. Haha, showed him.

But yeah, we must have fucked something up. I'd like to know how to do it correctly.