October 5, on "The Tonight Show" with Jay Leno, an embarrassed actor Terrence Howard explained how he ended up injuring himself with some impromptu car-fu.
Explaining the accident he said: "I'm sitting in the car and I'm thinking about the Bruce Lee days and all of the kung-fu stuff that people used to do, and I'm trying to drive and I made a fool of myself in the process," he said according to hollywood.com and tvsquad.com.
"You know how Bruce Lee used to do that little short one-inch punch? I'm thinking I can do that in front of the rear view mirror. That one-inch punch. That mirror hit back. (...)."
So now we know - boards don't hit back (or so said Bruce), but mirrors apparently do. Good to know :-)