Motivation for fatcats.

I went out-grumbling- and inexplicably ran 10k in under an hour. I don't know how this happened. I knew I was running free-er and more upright (I'm inclined to hunch over and look at the ground a lot), and I definitely put a spurt on when I looped back around to the last 3k section before the house, but this is unreal for me. I am really not a very fast runner at all. I think I ran it in 58 minutes or thereabouts, I can only guess the closest time as I was wearing a normal hand watch. But still, under an hour for me is..well it's not the norm.
I would have been on to crow about it earlier but I had to go and get cat litter. Such is life.