When my son gets in trouble, he makes up excuses as to why it's not his fault. This one day he was yelling at me and I told him to go to his room, I wasn't going to tolerate it anymore! He started running up the stairs crying and he fell. He came back down and started complaining his elbow hurt. I told him to go to his room. He starts throwing a fit and I tell him I'm done and go to his room.
Later that night he's complaining his arm hurts. I move it around and tell him to use it otherwise the muscles would atrophy.
The next morning he's still whining, so I take him to the emergency clinic. They do x-rays and say nothing is wrong and send him home.
The next morning he's still whining and using this as an excuse for why he can't do this that and the other thing. I told him I wasn't going to give him lunch if he wasn't going to use his arm.
The phone rings around 1pm and it's the emergency clinic. They reviewed his x-rays and he had broken his arm up at the shoulder and the guy the night before had missed it. I had been making him move it, use it and refused to feed him until he started moving it!
Needless to say, he got ice cream for lunch AND dinner that day!