Nope. I never am. I love having my children with me all the time. (yes, I'm serious; no, I'm not insane)
Every year, I drop my children off with their teachers, hang around the school talking to other parents and checking out the school store for as long as I can, then go sit in my car in the parking lot and cry for half an hour.
I know - it's pitiful. sigh
But to me, what's REALLY horrible are the moms in the neighborhood I live in. They all walk their children to the bus stop, then stand around talking until the bus comes, and then collectively cheer when the bus pulls away with their children. Then they all head up to the pool and drink beer and party until it's time for the bus to come back.