teaching is like running a marathon

A coworker (Ms. H) and I signed up to do a half marathon together, coinciding with the end of the school year. I think we both appreciate the parallel structure of grueling exercise and grueling jobs. I'm in my third week of training and so far so good. I've never run distance before so I'm just training to finish -- if it takes me 2 1/2 hours I don't mind one bit. 

When I told my kids they were really excited about the idea of me "racing" Ms. H.