I respectfully disagree. I understand his concern - file, end up with a target on his back, and make his future working days that much worse, or, keep his mouth shut and just "deal" with it until he's finally had enough, says "friend this place", and walks out. Catch 22. Me, personally, I'd pull the sup aside, and ask him straight up what his issue is. I actually had a run in with a sup when I was first hired, and I did that very thing. Come to find out he was on my ass because our department had a missload problem. He was told to ride everyone - and on that particular day, I was the one bearing the brunt of it. The directive to give us hell came from his higher ups - which, once I knew that, meant that he was doing what he was told. He wasn't trying to be a prick on purpose.