If the penny was on Raging Bull at SFGAm, then you could ask my friend Devan about that one...It was kinda funny, he put it on the restraint, and as we went down the hill gravity got ahold of it, and what do ya' know, we hear a guy behind us yell "OUCH"...
on dropzone its super cool to put a penny on your knee and watch it float in midair when you fall down/