I have.
I was drag racing at a small track out in country Victoria. (Australia)
I was a bit late to the line and the other car had done his burnout and was ready to go.
I did a quick burnout and reversed back to the line trying not to hold up the show.
Rather than going back through the start line, then moving forward to stage the car, I reversed back in and stopped with the green lights ready to go.
In the rush to do the right thing, the lights came down and I launched the car at
4500rpm in reverse.
Lucky I only went five or six meters before I hit the brake and did not kill anyone.
The whole crowd and I laughed our ass off.

