I remember going shopping in MK about 15 years ago, we saw this fat bloke in a leather jacket flanked by minders stomping into the shopping centre. It was William Shatner during the time when he was on his uppers, he went behind a screen and on the screen was a piece off paper that stated that an autograph was 25 quid. There weren't many takers by the looks of it, but I was later told that he had been there on the Friday and Saturday too. The Allo Allo cast members were doing a roaring trade mind you, though I think their autographs could be had for a fiver.