What are you doing here?

Every day (or most every day) since Andrew started at the day care I go down there at lunch to give him his bottle or feed him his baby food. To get to Andrew's room, I have to walk past Austin's class. Most of the time he doesn't see me or if he does he doesn't acknowledge that I exist in that moment. On Thursday, Austin was outside on the playground and saw me park, get out, and start walking to the front door. He ran over to the fence and said "What are you doing here Mommy?" I told him that I was there to check in on him, make sure he was behaving. He said "I behaving, Mommy." I think he was surprised to see me during the day. I hoped that this Mommy sighting would deter the bad behavior. No such luck.