No schlepping on Shabbat?

An American Jew was shopping on Regent Street in London.

He entered a posh gourmet food store.

A sales representative in a long morning coat with a tie and tails approached: "May I be of help to you, Sir?"

"Yes, I'd like a pound of lox."

"I'm sorry, Sir, do you mean smoked salmon?"

"Okay, a pound of smoked salmon."

"Anything else, Sir?"

"Yes, a dozen blintzes."

"I believe you mean crepes, Sir."

"Okay, a dozen crepes."

"Anything else, Sir?"

"Yes, a pound of chopped liver."

"You are probably referring to pate, Sir."

"Okay, a pound of pate, and could you deliver this on Saturday?"

"I'm sorry, Sir, we don't schlep that chazerai on Shabbes!"