I was driving down the highway, doing about 70mph, when my sister decided she didn't like that I was only driving with one hand on the wheel. So instead of saying something, she grabbed my arm and shoved it into the steering wheel. It caught me by surprise and I swerved a bit. Her response was, "You wouldn't have swerved if you had both hands on the wheel."
Uh, no. I wouldn't have swerved if you hadn't grabbed my arm quickly and threw it into the steering wheel while I was doing 70 down the highway.
What's the last dumb thing someone has done to you while you were driving?