Funny story:

I went to a "drunken philosophy" thing over the weekend. It's a bunch of people with little to no formal training having beers and asking questions, big fun. So I went to a table of people I didn't know and this happened:
Me: "You guys talking philosophy here?"
Table: "Uhhh... Yeah"
Me: "So what did you think about the prompt?"
Table: "What prompt are you talking about?"
Me: "What philosophy are you taking about?"

Turns out, totally randomly, half a local college's philosophy department was just there having drinks!