About a year ago, I was at the local 1/8th mile.
While staging, I was preloading the car. I didn't brake enough, and rolled slightly past the staging lines, so I put it in reverse and began to back up. I didn't notice that the car in the other lane (who I thought was taking their time in the water box) had quickly staged beside me. So of course as soon as I noticed this, the lights dropped, and since we were running heads up, I instinctively hit the gas and began feathering the clutch, only to realize I was still in reverse. DOH! Only went back about 5 feet before I got it into first and launched again. Had a 1.7r/t IIRC, but still managed a 10.1 sec pass.