I once put a cigarette out on my arm

I was reading the "I got beat up today post" (some hilarious content) and one poster recommended putting a cigarette out on your own forehead. This reminded me of a story I will tell you all today.

I was sitting around with a friend on my porch just talking and smoking, totally sober. Somehow the idea came up and with very little hesitation we both put our cigarettes out on our arms (on the bottom side of the front part). It didn't hurt that much (not nearly as much as I thought it would) and I still have the scar to this day. Has anyone else done anything this stupid / fun, for no real reason what-so-ever?