"A reasonable force is when the guy/s can't get up, and are no possible threat any more."
Dead set true. Let them up & they might yet get the upper hand. Made that mistake once, lol. Should have finished him propper. Stood back to let him up, & was grabbed by several from behind to restrain me from hitting him again, & with me in a headlock, the doodler got up, picked up an empty beer jug, and let me have it on my nose.Ouch. Not going to let that happen again.