The shot must have been more like a graze to the shoulder. Wouldn't a .45 directly in the shoulder have knocked him flat?
Maybe, if you notice he's a BIG feller.
Not if it didn't hit a bone. I took a Half-jacketed hollow point from a 45 in the stomach that exited my upper thigh in the rear in 1975. It didn't hit a bone on the way through. I was able to return fire, telephone for help, walk down a flight of stairs and wait on the curb for the ambulance.
It does screw up your day though.