I'm just curious. The Gellers are at least half Jewish. Rachel's mother is played by Marlo Thomas (she's Jewish, if I'm not mistaken). And in "The One With The Race Car Bed," Dr. Green says he wants to say hello to the Levines--a Jewish surname.
It might be that the Greens just have a lot of Jewish friends...but do you think that Rachel is Jewish?
I'm not judging or anything, by the way. Just curious.