When I first bought my car, the PO had installed headers and disconnected (and removed, darn it!) the reverse linkage from the trans to the bellcrank. For awhile I didn't have backup lights until I realized he'd removed them since they were on all the time. So then I had to remember to rotate the collar on the sterring column to turn them off while driving. I started a trend of "flashing" my back-up lights to "wink" at girls while cruising. I was later told several guys were blowing fuses, trying to figure out how to do this!