Your story reminds me of something similar -- but it doesn't put me in a particularly good light:
At a social gathering with an easel painter, who was told that I was a woodturner who specialized in hollow form vessels, she said, "So what do you do with them, do you put flowers in them?"
My reply: "So what do you do with your paintings. Are they used for wallpaper design?"
Kind of nasty on my part ,I suppose. But I thought she deserved it at the time.