Worked the opposite way for me this morning, although it has been one of 'those weekends' with all the odd ball customers coming out at once! But yes, guy rings over the weekend of a 50k Titanium X Estate Mondeo I've got as 'due in' ( I had 3 enquiries on this vehicle over the weekend). The car gets delivered to me this morning at 9am and we start cleaning, he shows up at 10am and asks why it isn't clean yet despite me explaining 3 times it has been DUE IN and has literally JUST arrived. Anyway he says it's got too many scratches and dints so he will leave it. To be honest there is not one 'dint/dent' on the car, and there was about 5 scratches, 4 of which have now gone with T-Cut and one is still there to be smart repaired (£40 max). So yes in a way my tactic has bit me on the bum on this occasion but it has worked very well in the past. I'm certain the next chap will have this car as it is really, really nice.
Next customer coming on same car at 4pm, so tactic obviously does work!