I'm sure there are lots of good ones. Here's a couple to start things off.

My very best - the girl ploppy to one side of me, after winning several in a row, excitedly exclaimed - it comes in spurts.

What a coincidence, I replied.

I'm boxed on both sides, with an attractive young lady, solid basic player, to my left. I asked "can I play behind you?" She replied - ummm, errrr, I'm married.