Rivkah has been going through some hard times of late and has to cut down on her grocery bills. Recently she went to a local market to negotiate for some low-priced fish. After a few minutes of looking at the fish, prodding the fish, and checking the prices, she goes over to the owner of the stall and asks, "I've just been checking out your fish on display and I need to ask you a few questions."
"So fire away," says the owner.
"OK," says Rivkah, "Is your grey mullet still fresh?"
"Of course," replies the owner.
"And is it still alive?" asks Rivkah.
"No, I'm afraid it has recently died," replies the owner solemnly.
"I thought that might be the case," says Rivkah. "It explains why you are charging so much for it."
"What do you mean?" asks the owner.
"At the prices you are charging you must be raising money to cover the cost of the fish's funeral."