Where is #4?

Okay, this was too funny to pass up. I read this in my Parenting magazine for the month of June 2009. I did not make it up myself (just so there is no confusion on who wrote it!).

"One child is a lot of work. You might think a second child would double the work, but he will quadruple it. The third child multiplies it by 27. A fourth child makes very little impact, possibly because you can't find him."

Ain't that the truth!