
One time I was waiting in line for California Screamin' when I heard a family in front of us discussing how they'd spend the rest of their day when one member of the party (let's assume it's the mother) speaks up:
"Okay honey, you just take the kids to fairy tale land (Fantasyland) in the kiddie park (Disneyland Park) and then fast track (FastPass) magic mountain (The Matterhorn? Which doesn't even offer FastPass)"
I've heard the occasional slip-up, but this is ridiculous. Best (worst?) of all, she said all this while holding a Disneyland Park guidemap!