I was out walking with my 4-year-old granddaughter. She picked up something off the ground and started to put it in her mouth. I took the item away from her and I asked her not to do that.
"Why?" my granddaughter asked.
"Because it's been on the ground. You don't know where it's been, it's dirty, and probably has germs," I replied.
At this point, my granddaughter looked at me with total admiration and asked, "Grandma, how do you know all this stuff? You are so smart."
I was thinking quickly, "All Grandmas know this stuff. It's on the Grandma Test. You have to know it, or they don't let you be a Grandma."
We walked along in silence for 2 or 3 minutes, but she was evidently pondering this new information. "Oh...I get it!" she beamed, "So if you don't pass the test, you have to be the Grandpa."
"Exactly," I replied.