I have a 19 year old son who stays up very late at night, drinks a lot and wants to sleep most of the day. He never eats at mealtimes with us and always wants to make his own food, leaving all the mess for me to clean up. I am forever handing out money to him as he does not have a job yet and I am really beginning to resent it all. I would like to be pro-active and set some ground rules before our relationship deteriorates any further.