A duck waddled into a bar and asked the bartender, “Got any lunch?”

The bartender replied, “Sorry, this is a bar. We don’t serve lunch.”
The duck said “Okay” and left.

The next day, the duck came back and asked again, “Hey, bartender! What’s for lunch?”

The bartender, now annoyed, said, “I told you yesterday, we don’t serve lunch at a bar. If you come in here asking for lunch again, I’ll nail your feet to the floor!”

The duck said “Okay” and left.

On the third day, the duck returned and asked, “Hey, bartender?”

The bartender sighed, “What now, duck?”

The duck asked, “Got a hammer?”
The bartender replied, “No.”

“Any nails?” asked the duck.
The bartender again said, “No.”

The duck grinned and asked, “What’s for lunch?”