Same thing happened to me I was at the skatepark down the road from me with a few mates, after about half an hour of riding we start hearing something hitting the trees close by but thought nothing of it at the time. some time later we hear something hit one of the metal ramps and we realise there is some chav hiding in the bushes across the road with an air rifle. The little b*****d shot me in the leg and ran off, the pellet left a big bruise but if i wasn't wearing jeans it would of pierced my skin. I reported it to the police but as expected nothing was done. It's little wankers like this that causes there to be so many rules and regulations to be put on air rifles and the like, which realistically only affects people that are going to use them responsibly anyway.