neverfastenuff's post reminded me of one time at CYB – someone was waiting to take pictures of his mates at the rocky bit just before where the final descent crosses the road to the car park; he didn't notice that his mates let me go first, so he took a picture of me instead 😛
Actually, reading this thread now I regret I didn't ask him for a copy, I don't have a lot of pictures of me riding…
Another time we were riding at Kirroughtree and an older couple asked whether they could take our picture on the bit where you go across the huge massive rocks (aaargh, forgot the name of that section) for a local photo competition – I was actually surprised they asked, I wouldn't have minded either if they'd just taken the picture.