text: how to make some one leave a drinking and somking? my father-in-law he continuesly drink and somke .if one is over he start another. as we are joint family we all are having problem with him what we should do to stop his drinking unfortunately he is the only one who can do that, not you they say in al-anon there are 3 c's.  you didn't cause it you don't control it you can't change it  this decision must come from him. nobody else can change him. i'd contact al-anon if you are worried.