Overheard at lunch:
Old Woman: Yuck! This isn’t a Diet Coke!
Old Man: It’s not. It’s a Sprite.
OW: I wanted a Diet Coke.
OM: I didn’t know what you wanted.
OW: I wanted a Diet Coke.
OM: I didn’t know that. How am I supposed to know that?
OW: I drink Diet Coke. I always drink Diet Coke. When have you ever seen me drink Sprite?
OM: You had Sprite at the potluck on Monday.
OW: That’s because they didn’t have any Diet Coke!
I suspect how funny you find this is inversely proportional to how long you have been married.