what's the best thing to do about my friend Toby. for a start He's immature. He has epilepsy. He's 19 and I'm 36.?

We go to a company where we do activities together. We don't socialize independently. He swears a lot. He doesn't understand things like change, boundaries. He doesn't like being told what to do. He doesn't like people being strict with him. He does things like rolling up a magazine and whacking people on the head with it. You can't play games such as Monopoly or Connect 4 with him, because he's a sour loser. So much so staff has to ban playing games, because he kicks off.

He's negative and he complains a lot. He also says other stuff like I don't feel pain. He even says the wrong things to staff like I will pull down your knickers and spank you, if you don't stop bossing me about. He says even worse stuff than that like he calls female staff sexy and sometimes he asks them on dates. He's even asked them for sex. Sometimes he also says stuff like, I'm going to hide something and make that person cry