Too right. There are good and bad intentions made by both traders and customers. And just like the program for rogue traders, they should consider doing a rogue customers. Surely it would attract the same viewers and viewer numbers as the rogue traders show.
I've personally experienced customers I'd like to stick on such a show. Some do fiddle with loopholes and grey areas to rip people off.
I heard of a granny ripping off big stores like B&Q when she "slipped" on an item on the floor or a wet floor not signed properly or something. In the end she was found out and dealt with in court but there must be loads of others like her, and others similar to her but using different techniques, maybe somtimes to get a gesture of good will refund or something on behalf of a "bad meal" when really they ate most of it and just wanted a free one. I've seen that before now too.
My mate used to go a top salon for his hair-do and then moan and say he didnt want it like that at the back (where he can't see them cutting) and demand it got it free. Worked every time. Though he started to run out of nice places to go to and now gets his hair cut on a local blokes barbers and I wouldn't tell the bloke that cuts your hair in there you dont like it - likely to be eating hair within minutes.