A few years ago I went to a gathering of folkies, and this guy I had never met but knew of came in with a sea urchin. Spines and all, and he headed toward me announcing that it was for the biggest prick in the house. If I had had time to think I never would have said it, but I didn't, and I blurted out, "Does your wife tell you everything she knows"?
Lucky for me he had a great sense of humor, and so did his wife. They became good friends with Jacqui and me.