One of the trail systems down here is constantly having obstacles destroyed or moved. Be it an anchored log in the middle of the trail, or a bridge built over over the split of a tree trunk, to even a teeter. Some think its some LAME-O biker that just can't ride over the stuff. I think it might be kids or even some tree huggers. Just wondering if anyone else deals with this crap? What steps have helped deter such behavior?