They say that a friend with mead is a friend indeed. I say strangers with mead and some sweet single-track mountain biking in their back yard are friends to be. So when I hear that Middle Mountain Mead, a maker of the honey-based fermented alcohol, is on Hornby Island—which is also home to a network of exceptional mountain biking trails—I decide to make the trip. Plus, there’s this toilet I want to check out…