This is a good one
"Mezuzah!"
Opening his front door, the Rabbi found himself
face to face with the local priest. "Rabbi, may I
have a few words with you?" asked the priest.
"Of course, Father," replied the Rabbi somewhat
nervously.
"Rabbi," began the priest, "It must be evident to
you that in this town we are plagued by thieves.
Scarcely a day passes without one of my flock
coming to me bemoaning the fact that his house
has been broken into.. On the other hand, I have
noticed that thieves do not bother you Jews nearly
as much."
"Father, you are correct."
"Yes, but why is that?" inquired the priest.
"Look at this little box here on the side of my door
post," said the Rabbi. "It's called a mezuzah. We
Jews believe that when we put a mezuzah on the
entrances to our houses, the Holy One, may His Name
be blessed, protects both us and our property."
"In that case", replied the priest, "I must have one!"
Not wishing to be the cause of an incipient pogrom,
the Rabbi reluctantly handed over a mezuzah to the
priest.
Some two weeks later the Rabbi was awakened by
the sound of someone pounding violently on his door.
Dressing himself hastily, he made his way down the
stairs. "Who's there?" the Rabbi asked tremulously.
"Open the door! Open the door!" screamed a voice
on the other side. Leaving the door on the chain, the
Rabbi racked the door wide enough to see the priest
standing in front of him, his eyes wild with great
distraught.
"What happened?" asked the terrified Rabbi. "Were
you not protected from robbers?"
"I was! But these people were worse than robbers!"
screamed the priest.
"Who?" asked the rabbi.
"Fundraisers!!"