>>753553>1. what if they arent standing square on? It doesn't really matter if they are standing square, you can simply adjust your hip.:
If they are standing square you turn and do a kind of "football tackle" with your shoulder foreward, if they have one side foreweard you can stay more square. Or if this doesn't help you go down for a Uchi Makikomi.
Also this is somehow a cheap question, OP wanted one technique and of course every technique can be avoided somehow:
>Jab --> But what if he guards his head?>Single Leg --> But what if he sprawls or has a knife?>(...)You know what I mean? O Uchi Gari is nice because it allows you to bring in the hips or (in a self defense situation) the shoulder or even doing a headbutt while keeping your guard quite closed - you could even pull it off in boxing if the other guy doesn't expect it.
And if you miss you are not in a bad position.
>2. what if they cling onto you on the way down?Than you will probably land on on top anyway and punch the shit out of them:
https://www.youtube.com/watch?v=jFAFKQThj9U 
