Productivity...

I think there must be some type of chemical that's secreted by grown-ups when they want to get stuff done. Only small children can sense it and in turn keep your productivity level low.

For example, one could be trying to talk on the phone with tax advisers during a quiet playtime. As soon as the numbers are pushed on the telephone an all out hysterical crying ensues just as the other party answers and you hangup.

"Prank" calls to H&R Block occur at least 3 more times before you decide to wait until nap time to make the phone call.