Not to hijack your thread....but...
On a mountain bike ride last month I was bombing a long, and I mean long descent (the ride was 26 miles, with an hour of downhill). I came across a bunch of cows. They were on the trail, and would stampede as I approached, running wildly down the trail until they could crash off into the brush. It was pretty freaking comicial, until I almost broadsided one at 20mph.