this isn't really something I watch out for, but considering baguazhang for "multiple attackers" type of thing, it seems like I could do it. here's two scenarios that happened to me recently. playing something called indoor soccer. our team was better and winning. other team got frustrated and more physical.
1. i ran ahead of the attacker, in front of his path because the ball was there. he just pushed me down and then complained i can't cut in front (not true) when i won the free kick.
2. ran to cut off attacker, started to block path of ball. this guy just shoulder charged me with a pretty good "kao" instead of making any attempt to play. i won the free kick but in this case no one complained as the foul was obvious.
in this case, i didn't really care as my breakfall was pretty ok, and i was happy to win the free kicks and give them no chance to continue the attacking play. OTOH, it seems stupid to me to not better factor in the variable some idiot will just use "pushing" or "kao".
Q: if you are assuming 1v1. push hands or other similar MA context, there are things you might do as anti-kao or anti-knockdown. when you aren't assuming this context, but if you assume someone may come along and accidentally or deliberately collide, how should you approach your anti-knockdown defense?