My daughter: "Everyone's so amazed that every snowflake's different, but no one cares that every potato is different."
My son: "If the many-universes theory is true, does that mean there's a universe where it isn't?"
He was eight years old.
My son: "If the many-universes theory is true, does that mean there's a universe where it isn't?"
He was eight years old.

I'd try that, but he's 21 now. Gawdnose what he'd say back to me at this point.