I try to if I can, like when I had new tyres fitted the other day, I stood there about 6ft from them watching their every move, but at Nissan they tend to get the receptionist to drive your car off to the workshop area out of your sight. - Still they slipped up a bit as I had the K1 exhaust on the car, so it was fairly obvious when their YTS lad started revving the living daylights out of my car in the workshop and once the workshop manager saw me fumming sent the young lad out to apologise to me.
Few years ago my mate took his to a main dealer told to pick it up at 4.00pm
arrived a bit early by bus and found the Spotty YTS ragging it around the roundabout trying to drift it.
He was not amused so the Service Manager told him the Spotty was "Road Testing it..!!!
I think he "sparked" out the Service Manager.
I've often said YTS training should include drifting