I was out walking with my 4 year old son. He picked up something off the ground and started to put it in his mouth. I took the item away from him and I asked him not to do that. "Why?" my son asked.

"Because it's been laying outside, you don't know where it's been, it's dirty  and probably has germs", I replied.

At this point, my son looked at me with total admiration and asked, "Wow!  How do you know all this stuff?"

"Uh," ...I was thinking quickly,"All moms know this stuff. It's on the Mommy Test. You have to know it, or they don't let you be a Mommy."

We walked along in silence for 2 or 3 minutes, but he was evidently pondering this new information.

"OH...I get it!" he beamed, "So if you don't pass the test, you have to be the daddy."

"Exactly" I replied back with a big smile on my face and joy in my heart.