Do you guys think Bobby Knight was wrong by "bumping" his player in the chin?

After seeing the clip several times, I say no, in fact if anyone else had done it no one would have noticed. Still, he should be aware that he's under the microscope and be a little more careful about doing anything controversial.

Looked like he used a closed fist to me. You can see it opening back up immediately after the "tap". Didn't look like a hard hit but can't tell for sure. I've always been a staunch IU fan but when he was there I didn't like his behaviour at all. Things that he did out in public that most people didn't hear about were deplorable. I was very happy when he got the axe at IU. Even though he won a lot of games and championships and did some charitable things, he came to be an embarrassment.