I once fell asleep in a pub car park in my car after work waiting to play a pool tournament. (don't ask) any way I woke at about 6pm to go into the pub, just at that exact time were 4 kids who'd dropped there bikes and were having a go at graffiti on the side of the pub wall. I watched for a minute or 2 with interest, then very quietly snuck out of the car kept up behind them and shouted "WHAT THE **** DO YOU THINK YOUR DOING!!!!" I have never laughed so hard in my life, these 4 little lads nearly sh1t themselves. They ran off leaving there bikes I then proceeded to wheel them in the pub, told the land lady who's a friend, and I waited outside for them to come back for their bikes. And like lambs to the slaughter they came back, very sheepishly asked what I did with their bikes. And I told them very politely if they wanted them back they would have to go in and apologies to the landlady. And watching that was just as funny as watching them pap themselves in the car park