My son works sunrise at DFW. He has had absolutely no attendance problems other than being late once since January. On 5/20 my son had minor foot surgery. He texted his sup last night informing him that he would not be in until 5/23. Sup replied that he needed a work release from the doc when he returned. So far, no problem. Tonight start time for him was 3:15, at 3:25 sup texts wanting to know where he is. Ten minutes later another text telling him its a NCNS and he would inform the FT sup that my son quit. Where in the contract/supplement is the attendance policy that applies to this so he can stop the threats before they escalate to a real problem?