Now is not the time for chin-ups.

Elmer sees his shot and takes it as Mark climbs back down to the the ground, but unfortunately for him (and fortunately for Mark), his aim is off (again), and the only one injured is a tree that might or might not be dead. Mark meanwhile, scrambles back down to the safety of the poison ivy surrounding the tree, deciding not to tempt fate any longer. Now, the fact that Mark was forced to cling to the tree for dear life instead of falling was a given. The fact that Andy appeared to have developed powers of levitation somewhere along the line is not. Of course, you do realize what this means, don't you? Andy is a super dog and not the Superdog that came from a society based on crystal/Lego architecture, which collapsed like a Lego airplane accidentally crashed into a wall (I speak of that from experience). Think of all of the good Andy will be able to do because he can fly. The Avians may have thought that they held air supremacy, but this proves that they were wrong (and won't Andy look cute wearing aviator goggles? I think so.).