Let me set the stage:
Fan is blowing, shower is running, water is clogging my ears.
I hear indeterminate mumbling just outside the bathroom door. Think Charlie Brown's teacher.
Me: You know I can't hear you right? If it's important come on in so I can hear you.
7 year-old boy: Mom, what's that thing you do for a hundred years?
Me, trying to make sense of what I think I just heard: Wh-huh...What?
7 year-old boy: That thing, that lasts a hundred years. What's it called?
Me, wondering where this is going: A century?
7 year-old boy: Oh yah.
And he's gone.