We play Joker too. My parents and several of their friends have a standing game on Sundays. My mother discovered this game and ordered it or gave the information to all of us.
We crashed the Joker party on my mother's birthday. I was shocked about several things:
We managed to surprise her.The most fun for me was playing with neighbors and friends I don't see very often. It's amazing how those relationships come full circle.
I managed to get the husband off the golf course.
They are super serious about this game. Even as people came in and out to wish my mother a happy birthday, players would zone them out as they plotted their "strategery."