This is a first.  I stepped on a bull snake on the trail today.  I was running through the trail along the creek near the softball field at 83rd and Niwot Road.  The grass falls over the trail so that the dirt is only about 20% visible.  I stepped on him with my right foot, he snapped up his head, which I whacked with my left ankle.  Subsequently, I screeched like a little girl.  As much as I know rattle snakes don’t lay across the trail like that, bull snakes look a lot like rattlers.  Some ladies were standing a few yards away.  They were possibly more frightened than me.  They convinced me to roll down my anklet sock to ensure I wasn’t bitten.  I wasn’t.  Got in twelve miles today though.  Awesome run.