I'll raise you one (for
@dryerlintfan ).
I don't recall how many years ago this happened, but I was staying at WL. Since I'm an early morning person, I thought it would be nice (around 4:30 AM) to take a walk down to the wooden bridge (that has the boat shuttle launch at the end).
So, I'm walking toward the beginning of the bridge (just beyond the geyser), and a guy comes running up the wooden bridge and tells me not to go down there. He told me that less than 30 seconds ago, a full-sized gator climbed up on the bridge (he had been halfway down, smoking a cigarette), and he heard a swish -- it was the gator's tail!! He said he never ran so fast in his life, but at least he still had his cigarette in his mouth, so he didn't lose that!