A wealthy, English, Jewish guy buys a fabulous home with over 50 rooms.
He brings in a local workman to decorate the place.
When the job is finished the Jewish guy is delighted but realizes that
he's forgotten something -- to put mezzuzot on the doors.
He goes out and buys 50 mezzuzot and asks the decorator to place them on
the right hand side of each door apart from bathrooms and kitchens. He's
really worried that the decorator will chip the paintwork or won't put
them up correctly, however, when he comes back a few hours later the job
has been carried out to his entire satisfaction.
He's so pleased that he gives the decorator a bonus. As the decorator is
walking out of the door he says to the Jewish guy: "Glad you're happy
with the job mate. By the way, I took out all the guarantees that were
in the little boxes and left them on the table for you "