That's the funniest thing that you never saw

Ryder cracks me up! Whenever he uses the phrase "that you ever" he says instead "that you never." So it ends up sounding like this:
Mommy, that's the funniest thing that you never saw!
That joke was the funniest thing that I never heard.
Grandma, that book is the silliest thing that you never read!
It makes me laugh every time :)