We might be rufty tufty Morgans drivers but since for some of us every other car we drive has some form of sensor and/or camera I can sympathise with Peters predicament.
Mainly because I did the same thing in my sons Range Rover the other day his sensors had stopped working on the rear and caught the bumper on our fairly sustantial wooden posts on the drive.
My son saw it happen so I'll leave you to imagine what got said!!!
DJC