We were competing in Dallas this past weekend and experienced some "contact within our frame perimeter" causing our pneumatic shooter to stop working.
https://plus.google.com/u/0/photos?pid=5991806169142267842&oid=100961862719407 130044
Looking around the pits at the other robots, I saw a bent frame and collector on one of the top robots. Another had a severely bent shooter which was quickly fixed. I later saw that same shooter caught under some frame members that it had no business being under. The team members had to use brute force to flex the shooter and frame to get it back out.
Our driver collided with one of the top robots, knocking the power cable out of their router and stopping them for the rest of the match. One of Spectrum's alliance partners suffered a broken collector but managed to use it to make one last pass to Spectrum for assist points. One of the robots in the semi-finals or finals was dragging an air tank as it drove around the field for a good part of the match. Surprisingly, it did not pop off nor did another robot run over it in all the chaos.