"Rabbi, rabbi"

One day, a teenage boy goes to his father- a rabbi at their small town's only synagogue- and says "Father, it pains me to say this, but I've decided to convert to Christianity."

The Rabbi, with no idea what to do, decides to walk ten miles to a much larger city, where he found a synagogue much larger than his own. He says to the rabbi there "Rabbi, rabbi! My son has become a christian! Whatever shall I do?" In reply, the other rabbi tell him "Funny you should ask! My own son has just converted to Christianity! Come with me, the rabbi of the largest synagogue in the state should have some answers for us."

So, both rabbis take a road trip to the largest synagogue in the state. They say to the rabbi: "Rabbi, rabbi! Both of our sons have converted Christianity! Whatever shall we do?" And the rabbi says "Well, funny you should ask! My own son has just converted to Christianity! Come with me, we'll catch a plane to Jerusalem and get this sorted out."

So, all three rabbis fly from the US to Jerusalem. They find the oldest, wisest rabbi they can, and in unison, cry out "Rabbi, rabbi! Our sons have converted to Christianity! Whatever shall we do?" And the old rabbi says "Funny you should ask! My own son has just converted to Christianity! Come, let us go to the Wailing Wall. God will surely have an answer to such a conundrum."

So, all four rabbis run as fast as they can to the Wailing Wall and drop to their knees, shouting to the sky "Holy father! Our sons have left us for Christianity! Whatever shall we do in these times of darkness?"

And God replies: "Funny you should ask!"