<human>: So this guy, Liam, is a mature student at the college I attend. He's part of a club that I'm a committee member of. He has a reputation for being inappropriately flirty with freshman girls. So 18/19 year olds. He has a girlfriend who is 20. The past month or so, he has been sending other girls, freshman of course, messages asking them to hang out, just the two of them, and not to tell anyone. I don't think anyone has said yes. They refuse to tell his girlfriend because she verbally attacks anyone who attempts to point out Liam's flaws.

So Liam's behaviour in our club room has always been inappropriate. He'll pester girls for hugs. He has also sent a lot of angry messages to males he feels are "out to get him". He's even got angry because someone else organised an event and girls were going to it. He raged that the organiser was "stealing all the girl members to spite him".

Some of the committee, myself included, are going to speak with him today about his behaviour and making girls feel uncomfortable. (It's college policy that we speak with him before escalating.) How on earth can we have a conversation when he's going to get angry and shout us down? He can't say his behavior is appropriate because he doesn't get to decide what makes other people feel uncomfortable. But honestly, I'm nervous about this talk. He has a very strong victim mentality and gets angry over nothing. He has, in the past, called people "a degenerate" and "an evil person" when he feels like they've wronged him.

How can I defuse his anger/shut down shouting? Should I record the interaction to cover our own asses?

Can you summarize the given text in a few sentences?
<bot>: have to confront an angry manchild about inappropriate behaviour. How can we manage his shouting so we can actually talk to him?