[RadioBlue]

Originally Posted by mbcrowder

I think he's really trying to say that if the arm movements are not natural to the play, his assumption is far more likely to be that the arm movements are intentional, and an attempt to interfere with the throw. If, however, the arm movements just look like a kid protecting himself, the tendency would be to assume just that - he's not trying to interfere, he's just protecting himself.

I didn't think he was inventing anything ... just perhaps not completely explaining his meaning.

Yeah. What he said.