When Katie moved into our little town, she asked about the crime rate in the village (population 50). "None to speak of," said one neighbor. "Except in August, you'd best lock your car doors. Otherwise, you might could find a big old zucchini in the passenger seat when you get back into your car."
Hmmm. Is that generosity? It's not exactly "taking something which isn't offered." It's more like "giving something that isn't wanted." But everyone gets a big laugh out of it. And it gives the "crime victim" an opportunity to pull the same prank herself.