Joe Brown has a shop. He sells  meat in his shop. One Thursday a woman comes into his shop at five to one. "I'm sorry I'm late," she says. "I need some more meat for my dinner tonight." Joe has only one piece of meat in his shop. He takes it out of the fridge and says, "This is $6.50." "That piece is too small," the woman says, "Don't you have anything bigger?" Joe goes into the room behind his shop, puts the piece of meat into the fridge, takes it out of the fridge again and closes the door with lots of noise. Then he brings the piece of meat to the woman and says, "This piece of meat is bigger and more expensive. It's $8.75." "Good," the woman says with a smile, "give me both  of them, please." Joe Brown was   _  .
a waiter a runner a player a shopkeeper