He requires that they go through professional treatment for whatever the issue is before they return to work. They're not fired, just required to do something before they can return.
For example, one guy had HUGE anger management issues. When it came to blows for the xth time, the manager pulled him aside, and said "I'm not going to fire you. I don't fire people. But you can only come back here when I've gotten a call from a counseling professional (he gave a number of one) and they tell me you've been through a successful treatment." It took six months, but he got the call and the guy came back to working. Apparently been one of the best employees ever since.
For example, one guy had HUGE anger management issues. When it came to blows for the xth time, the manager pulled him aside, and said "I'm not going to fire you. I don't fire people. But you can only come back here when I've gotten a call from a counseling professional (he gave a number of one) and they tell me you've been through a successful treatment." It took six months, but he got the call and the guy came back to working. Apparently been one of the best employees ever since.