I think this joke is funny and so far, all of my intermediate to advanced ESL classes have agreed with me.
A duck walks into a bar and goes up to the bartender.
The bartender says "What can I get you?"
Duck: Umm. Do you have any grapes?
Bartender (looking surprised and finding the question odd):
No, I'm afraid we don't.
And the duck waddles slowly out of the bar.
The next day at the same time, the duck waddles into the bar, hops up on a bar stool.
Bartender: Hi. What can I get for you?
Duck: Umm. Do you have any grapes?
Bartender (a little annoyed): Hey! Weren't you in here yesterday. Look buddy, we don't have any grapes. OK?
The duck hops off the stool and waddles out the door.
The next day, at the same time, the bartender is cleaning some glasses when he hears a familiar voice
Duck: Umm.. Do you have any grapes?
The bartender is really ticked off.
Bartender: Look. What's your problem? You came in here yesterday asking for grapes, I TOLD you, WE DON'T HAVE ANY GRAPES!! Next time I see your little ducktail waddle in here I'm going to nail those little webbed feet of yours to the floor. GOT me pal?
And the duck hops off the bar stool and waddles out.
The NEXT day at the same time, the duck waddles into the bar, walks up to the bartender and the bartender says,
"What the heck do YOU want?"
Umm. do you have any nails?
What!? OF course not.
Oh. Well, do you have any grapes?
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I taught my students waddle, webbed feet but you could teach What the heck do you want, pal, barkeep, bartender, etc
It is also good to review "any"
A man's dog has a problem so he takes him to the vet's. The vet looks at the dog and says that he'll have to take him to the examining room. In the examining room, he takes a cat out of a cage and lets the cat walk all over the dog, but the dog doesn't do anything.
The doctor say "Your dog is dead."
The man goes out to the receptionist and asks for his bill.
"That'll be $325" says the receptionist.
"What! $325? How's that possible?"
"It's $25 for the consultation, and $300 for the Cat scan."