Home Schooling Nightmare

Alert! Alert! New Information! So, I'm homeschooling this teenager. Friday, he doesn't show up to class. I call and text him. No answer. I was getting mad. I called his mother and she calls him. He uses the excuse that he was not feeling well and figured it would be okay not to come to class. What! I have other things to do besides be at his beck and call when he thinks he wants to do school work. This is the second time he has done this in the two weeks of homeschooling. I talked to his mom and told her if this happened one more time, than I was not going to continue homeschooling him. Blah! Why do teenagers think they rule the world?