That is so funny that people don't know how to have a potluck. But that is why it's called pot luck, cuz you get what get. When we first established a Jewish congregation in the little Southern town I lived in, everyone brought noodle kugel (noodle pudding), a very traditional comfort food. After that, no one brought it, so we learned.

And yes, I think marrying the person you have the best sex with is a good idea. I was just saying to myself last night, after you know, that there may be a better mate for me out there, but as long as we have the best sex, I'll never find out.