After my wife and I had finished doing some mid-storm snow shoveling, I couldn't resist taking out the unicycle and diving into a drift.
Even though I've switched over the tire from the road-focused Big Apple to a trail-oriented Stout I don't like going out on the road or trail for much riding in winter conditions. Under the packed snow is ice. The ice waits for me to ride nearby, calls to my unicycle like the sirens to Odysseus, and when I ride close, drops me on my arse. Actually, it was the fall on my knee that hurt the worst.