Late for School

Have you ever tried to do something and then your wife calls to tell you all the things you forgot? Yeah, that was our morning. As I am driving my son to school this morning I thought we had everything covered and didn't even have to worry about waking up mom. Was I ever wrong! Half way to school she calls to let me know I forgot a snack, he was supposed to wear his school shirt, and he didn't have a drink for lunch. Sooo, needless to say we had to turn around and go back home. As I took him in to school 15 minutes late, I heard him tell his teacher, "My dad was running late!" He is three, we didn't rehearse excuses on the way to school, he came up with this on his own. What do you say to that?