Self-esteem...

When your friend shows up at the door on a Saturday morning to pick up your 8-year old son, and he runs ahead to answer the door and you hear him whispering in hushed tones, issuing the following warning to said friend: "You may not recognize my mom cause you're used to seeing her at work when she usually brushes her hair, and wears a bra and stuff, so..."

If your self-esteem needs a boost, hang out with a kid for the day. Just not mine...