A Jew was walking on Regent Street in London and stopped in to a posh gourmet food shop.

A Jew was walking on Regent Street in London and stopped in to a posh gourmet food shop. An impressive salesperson in morning coat with tails approached him and politely asked, May I help you, Sir? Yes, replied the customer, I would like to buy a pound of lox. No. No, responded the dignified salesperson, You mean smoked salmon. Okay, a pound of smoked salmon. Anything else? Yes, a dozen blintzes. No. No. You mean crepes. Okay, a dozen crepes. Anything else? Yes. A pound of chopped liver. No. No. You mean pate. Okay, said the Jewish patron, A pound of pate. And, he added, I'd like you to deliver this to my house next Saturday. Look, retorted the indignant salesperson, We don't schlep on Shabbos.