Again, my experience is that it is going to lunch or dinner with a group of people. If that group is into sports, you can talk about a lot of topics and no one rolls there eyes when someone talks about the local team.

My munch group talks about a lot of things, and yes, a lot of the commentary broaches on bdsm, but not all of it... but when it does, no one gasps and looks at you in horror. You get to be with a group of people who are, at the least, tolerant of bdsm play.

Maybe it's because my munch group isn't open to all comers. They keep the locale private and you have to meet a lead member first. It keeps the predators and hook-up artists away.