Try to park where there's 50 percent coverage, such as the end of a row, or near landscaping. There's less chance you'll be hit with door dings or scratches from other drivers. Another technique is to park beside a seden or minivan as their doors don't extend out as much as a coupe would. You could also try and park beside cars that have much greater value than yours. Finally, when you are driving in a group with other friends whoa re driving, park beside each other.
If it's some punk kid then that's pretty much unavoidable, if someone wants to fuck with your car they will. The above techniques will eliminate the percentage and probability of being hit by random occurrences.
Mr. Peanut (Niel): George... I win