After dinner my son sometimes likes to skip around in circles and sing or think out loud. Tonight was one such evening. As he skipped around the living room in an inquisitive frenzy he began to talk about all the different kind of animals there are. In his desperate quest to discover the link between us and other mammals he wondered out loud...

"Is a shark a mammal?"

"Nope, they do give birth to live young, but breathe with gills not lungs," I replied.

"Is a seahorse a mammal?"

"No, it's fish also, like the shark."

"Mom, is a lion a mammal?"

"Yes," I reply.

Nova begins skipping a little faster. 

"Mom, is a tiger a mammal?"

"Yes, Nova."

His skipping speeds up again. 

"Is a whale a mammal?"

"Yes."

"So, a monkey is a mammal?"

"Yep."

"Geez mom, just about everything is a mammal or a fish! There are no reptiles."

My four year old daughter, who, the entire time sat at the table picking at her green beans, pipes up and ask in her silly, cute voice, "a wrecked tile??!! What's a wrecked tile?!"

Nova stops dead in his tracks, still breathing heavy, he raises his arms in a muscle man pose and shouts...

"I AM ERECTILE!!!"