https://www.youtube.com/watch?v=OXYxwBpXEvw

I couldn't find a more ridiculous or blatant one, but i didn't look that hard lol.

In the above its a foul. The defender is only entitled to vertical space and/or any spot on the court that he beats the offense to. The only space his arms are entitled to is vertically. If his arms are forward or out to the side and contacts the offensive players body a foul can be called if the contact is severe enough.

Now whether that is a shooting foul or not, at the high school level the offense has to be in the act of attempting a legitimate shot. HS hasn't caught up to the nba yet as far as players moving to the side to attempt to draw a shooting foul lol....give it a couple of years tho.