Quoting bbbt:" If he doesn't help pay rent, he is a guest in your house and you have the full authority to kick his ass out. "
Quoting applelove:" You can get some friends to helo you just put all his stuff out side and change the lock. I must warn ... [snip!] ... he is that some day he might try to get par custody and you want to document all the smurffy things he does till that day comes!"