Commiserations. Someone who drives 1200 miles a year and always reverses into parking spaces at at 0.25mph and is never in a hurry will be along soon to tell you that you can't drive properly. Of course it IS always the driver's fault, but the flush to rim tyres dont help - when I changed a tyre recently they only had an N-rated Porsche tyre which does have a useful rim protector lip.