unmet expectations my arch enemy

I may get upset about things from time to time like when I'm hungry, or haven't gotten enough sleep but when I get really really mad it's always because of 1 thing unmet expectations.  like yesterday, when I expected joseph to come home with a star in his daily folder and instead he had a comment, 2 actually, not paying attention and throwing toys during inside recess. before I mention how upset I got I will say that joseph impressed me by telling me as soon as I saw him. so at first I really was not upset at all. why should I have been? joseph had set the expectation that he got in trouble at school. but the further we got from tae kwon doe the madder I became.......