At BMR we had 2 incidents where we were tipped over. The first time was a shear accident, where we backed up, and went forward, causing our robot to tip a bit... when an opposing robot contacted us underneath our kicker wheel. The result was that we immediately tipped over. During that match, we didn't have our wheelie wheels on our robot; the situation was purely accidental.
That team received a yellow card
, and after reviewing the tapes, my team came with the general consensus that the team didn't deserve it at all.
The second occasion, we had our wheelie wheels on, and as we were trying to score, a team hit us, knocking us backwards, over our wheelie wheels, and sticking us in a position at a severe angle to the ground. We wouldn't have gone all the way over, except for the fact that the other team spent at least 30 seconds, repeatedly backing up and hitting us. It wasn't until they pushed a significant amount that we toppled. They didn't receive any penalties for their actions.
The refs explained that we were "in a position to score", even though we pretty much disabled at that point, and could in no way score. It was pretty disappointing.