Family vacations are usually just the three of us: Mom, Dad, six-year-old. Which means we spend a lot of time acting as our son's playmate in kiddie pools, gooney golf courses and arcades.

So I wasn't entirely surprised when he asked if he could bring a friend on our weekend get-away to the Nickelodeon Hotel. (At least he's stopped asking for a baby brother.)

Surprising myself, I said "yes," and in two days we'll be a gang of four heading to Orlando.

For now, I'm freaking out a little. What if the kid wants to go home in the middle of the night? What if he won't eat? Or he gets lost? Or he's really naughty? I can't threaten to toss the Nintendo of some other Momma's baby out the window for bad behavior -- can I?

Any advice for handling Other People's Children?