How does one "passively respond"?

My one and only quaker joke, which I don't think is insulting or anything (correct me if I'm wrong):

Quaker meeting house moved in next door to a well-established synagogue. Slowly, one by one, over several months, synagogue members started going over to the Quaker meeting house to check it out. Many never came back to the synagogue! The rabbi was starting to get concerned, so one Sunday he went over there to see what was going on. He sat quietly for a while, then when there was a chance, he spoke up.

"I'm concerned that some members of my congregation have ceased coming to synagogue since you moved here."

There was silence for a while. Then one of the quakers said, "I think maybe you're prejudiced against Quakers."

The rabbi thought about this, and replied, "No, that's not true. Why, some of my best Jews are Friends!"

(rim shot)

Alex