Track meets Sunday attire

Michael usually only has jeans and track suit pants in his "pants" drawer.  On Sunday, he wore dress slacks (first time since Bennett and Tiffany's wedding?) for his First Communion.  This morning I had to leave for work before he was dressed, so imagine my surprise to find him wearing dress slacks upon my return.  Even funnier was learning that he had done the long jump and 100-meter dash in them, having thought they were his navy track pants when he got dressed on his own at 7 a.m. in the morning.