I'm a culprit for bringing up M&S but only really because I had to return a pair of linen trousers that I had bought and not tried on. The were split from waist to nether regions at the back and it felt like the CS person and everyone in the queue was looking at my backside thinking "she done it". I did get my moneyback but it was a bit of a fight though. At least if that had happened with QVC I wouldn't have had to have argued my case in front of a queue of people.
"no. I didn't bend down and rip the arse of the trousers missus. Someone else did it!" lol