I was recently enjoying a nice dinner with a few close friends of mine. Our conversations are often less than delicate, so it was no surprise that talk soon became a little tactless. The subject turned to the unpleasant yet inevitable consequences of our meal that would visit each of us within a few hours. No, we weren’t talking about beans (the so-called “musical fruit”), but about asparagus, a seemingly benign green delicacy that goes especially well with hollandaise sauce. Strangely, one member of our group had no idea what we were talking about, despite describing asparagus as her favourite…