When I was in preschool, k-5ish, we had a bunch of round tables in our room. Well, since its kinda hard to tell which chair is yours at a round table, I sat in the one I thought was mine. Turned out to be the kid who sat next to me's chair. He didn't like me in his chair so he stabbed me in the arm with one of those gimongous pencils they give little kids to write with.

True story, the lead is still in my arm to this day.