Question about the shield: I accept that the shield doesn't obey physical laws, flying, bouncing off stuff, returning to the thrower, ok I get that. But does it spin when thrown? I always assumed it was like a frisbee when thrown. If that is the case how do they straps always align perfectly to slip back on the thrower's arm? Even if it doesn't spin, no way the straps would always just align to someone's arm. If they used the magnetic attachment like in Winter Soldier it would at least make more sense.
Again, I realize there are no answers, it's just fiction. But these kind of geeky questions are what we do here, right?