mati:
Probably more for dents in the car. The car is still the holy cow for German men. If you walk through German villages on Saturday afternoons you will still see all men washing and polishing their cars. And especially in Bavaria the risk is quite high that somebody drags you out of your car and spank you if you don't follow the traffic rules exactly.
If we ever drive through Bavaria, I'll have to make sure that my wife is driving the 'Beemer (touring)' as it is usually less than pristine because it's main use is taking the dog for a walk.
I could watch happily as she was spanked for my sins of omission in car cleaning.
If our German Shepherd was younger she would have offered protection, but she's a very old lady now.