I leave mine on as it's a hitch so makes great "crash protection" I was 800 Km's from home and was rear ended by a domestic, I got out thinking "The Supra is fucked what a hassle to get home"
Walked back looked at the front of his car (trashed) looked at the Supra blinked rubbed my eyes and asked him "you did hit me didn't you?"
It tore the pinstripe tape on the bumper that was it!
He hit the tow bar full on and didn't touch the car, his headlight glass tore the pinstripe.