Or can we be loyal to this type of player and give them the right to confess and promise not to do it again?
I think it's worth asking for his opinion as well; maybe he doesn't even want to be here anymore. After all, he's a person, and he should feel guilty...
But if his goal is to engage in this kind of behavior, he'll show up again.
Ты будешь жрать мир, или мир будет жрать тебя — в любом случае все о'кей, все идет по плану.