My alcoholic son is presently serving time in jail for dui and probation violation. He is 37 and has been through several rehab programs over the past 20 years with family encouragement, love and support but with no success. His sister and I have decided not to contact him this time and see if he will finally come to his senses and stop drinking before he loses his wife and child and home. I feel like washing my hands of this foolish ingrate for good, but feel unsure; is this is the best thing to do?