Dude 1: Hey, um, how many mushroom you have in that bag?
Dude 2: I have seven mushroom in my bag.
Dude 1: Good. Er, what about celery?
Dude 2: I got two celery.
Dude 1: I'm makin' stew. You got half a dozen sweet potato I can borrow?
Dude 2: Um, I think there four, uh... yam. No sweet potato at all though.
Dude 1: No sweet potato?
Dude 2: No.
Dude 1: Oh.