TL DR You just want summers off you bum
I'm not a teacher. A lot of my friends and family members are, and all I have to say is that they deserve the time off.
It's really emotionally draining to teach kids, especially in the public school system (in LA). They go home to grading papers and writing up lesson plans and having their every move watched by the state to ensure they're "doing a good enough job." Then they have I go to school and handle emotional problems of children who could have pretty screwed up home lives. Sometimes teachers are a kids only source of encouragement, and that's a lot to bear.
There are dead beat teachers. Don't get me wrong. This person is one of the good ones. Compliment him/her for it. We need people like this teaching our children.