Painful: I think it hurt but I can't remember how I felt. Getting hit above the lip under the nose with a metal baseball bat by my sister, thus making a hole, and having to get stitches.
Scariest: hmm...probably when i was a girl scout i was selling either cookies or nuts and my godfather lived behind another house (so it was like a house with a gate, you go through the gate, go through another smaller gate and ur at my godfathers house) and so I went through both gates and when I found out they weren't home I turned around and this big brown dog came out from the other house into the backyard. Luckily, the smaller gate was in between us but the dog started growling and barking and trying to get over the fence. I started crying and calling for help. Nobody came. I was there for what? 15 minutes when the dog finally gets bored and goes inside. I silently and quickly crossed the backyard and biked home as fast as possible.