I checked on my cameras the other day, I climb a tree to swap cards in one and change cards hunging the tree trunk. When I got down I looked at it and could see something was right over the camera lens. Grabbed a branch to clean it off and it was a spider. Out of the three weeks up the last one was just Mr. Spider. When I knocked him down I didn't see where he landed so I hope he gets the hint and doesn't come back. Anyone ever have this problem? What other kinds of insects have you guys had problems with?