So the other night me and some friends were hanging out at his place and there were a few too many people so we decided to go to my place to thin things out. We all started driving up there and the ones we were trying to avoid followed (of course ) so we get to my place and I go to parallel park. I stop, throw it in reverse, look behind me and slowly start to backup...crunch... the not invited crew thought it would be funny to tail me and stopped right behind me, my truck is lifted and they were in a civic so I couldn't see them for the life of me. My hitch receiver put a hole in their hood, is this my fault? the repair bill isn't much but i thought id ask. What do you guys think I should do?