A rabbit repeatedly asks a shopkeeper ,"Do you have any carrots?"
The seller retorts "No"
It's become a habbit to come to the same shop regularly and ask ,"Do you have any carrots?" The seller [by now frustrated] says "If you ask the question again i will hammer you to wall with nails."
Early the next morning rabbit comes back and asks , " Got any nails?"
The seller answered, "No!"
The rabbit asked, "Got any carrots?"