Naughty Duck

A duck walked into a department store and asked the clerk if he had any
grapes. The clerk said no, it was the shoe department and he had no
grapes. The duck proceeded to waddle away.
A few minutes later the duck looked up and noticed this duck waddling
toward him again. The duck asked the clerk if he had any grapes. The
clerk, losing his temper, replied that he had no grapes and not to
bother him due to being too busy for that type of antics.
The duck waddled away.
Not more than 5 minutes later, in waddles the duck. Directly to the
clerk he went. "Got any grapes?"
The clerk, steaming, replied, "If you come in here again and ask for
grapes, I am going to nail those flat feet of yours to the floor!"
The duck shrugged his shoulders and waddled out the door. Two seconds
later the duck approaches the clerk, "Got any nails?"
The clerk, "NO, WE JUST SELL SHOES!"
The duck, "Got any grapes?"