He had on some new to us pjs with mummies on them.
Me: Matthew, what's on your jammies?
Him: (blank look because he's never seen mummies before)
Me: Are they mummies?
Him: No!! Matt's jammies!
Me: No, mummies ON your jammies.
Him: MATT's jammies, not mommy's.
Me: Who's on first?
Him: (the look of "you're dumb mommy)