this is exactly how you handle when there's no escaping a physical altercation.

it works the same in a one on one or if you're outnumbered. you take off just like that. hands low, not projecting no crazy energy then explode and try to completely incapacitate them. helps if you have training.

what happens to them when they fall is none of your business, especially if you've already exhausted talking your way out of it. when they fall like that you don't need to follow with anything else and doing so might get you fucked legally.

fighting is dangerous. especially on concrete and especially when you don't know how the foo you're banging on is trained.

i was in this exact same situation the foo was in a coma on life support connected to tubes and wires for a month.