Clients are not dumb, especially today. tell the little shi^ that he has two choices, comply or go home. if he isnt on time, start without him. if he needs you to escort him in and is late, make him wait until coffee, unpaid. if he doesnt want to follow safety, send him home. its pretty simple. Then call your office and get another one. you cant let him develop bad habits, its a reflection on you too.