My mom was busy getting supper ready for a party the other night, and was evidently flustered because she said, rather authoritatively, "Grandma's watermelon may or may not be cut when she brings it."
Dad stared. "You're kidding!"
When grandma arrived, her watermelon either had been cut or hadn't (in this case had), and mom crowed, triumphantly, "See?"
"Sure enough," dad said.
And it was sure enough.