Sure. It happened just last night ;)

I called it intentional. My basis was that if it's an intentional for the defense to reach through and touch the offense, the offense has even less reason to do it and should face the same penalty. And it wasn't like it was tight quarters either. He had fifty feet he could have backed up if he wanted to. An indefensibly non-basketball play.

Good question. We've had that same discussion here a few times over the years too, but I don't think that we ever came to a consensus. It isn't definitively covered imo.

If the player with the ball deliberately elbows another player, you can call an intentional personal foul instead of a PC foul.

Also imo, if the player uses the ball to foul:
- if the player throws the ball and hits somebody, and you deem it a deliberate unsporting act, you can call the "T". Case book play 10.3.7SitB does give us some kind of direction on that.
- if a player holding the ball uses the ball to push off and gain an unfair advantage, I'd treat that act the same as a player using their forearm to push off. Iow, player control foul. Maybe even an intentional personal foul if he knocked the defender on his butt with the ball. Of course if he hits him in the face/head with the ball, buh-bye. The only other alternatives are calling a "T" for an unsporting act or ignoring it, and I certainly don't recommend ignoring it. I don't think that there's any real definitive rules coverage that will favor one call over the other though.