Real Men Quote themselves.
I thought "Man! That's awesome. I should quote myself!"
Then I Looked at my sig....
Blond.
On topic: So far, I have bought two horses...
I was riding between Windhelm and Whiterun on my way to some location in the Stormcloak questline, when I saw a waterfall, rode my horse over to it, got off, killed the horse and dunked it in the river...
Then a bit later I rode up to the top of High Hrothgar to go and talk to the Treebeards about what to do next with my second horse. (I bought that one because I thought it was a good idea at the time, but also because I wanted to make one trip south from windhelm pretty fast). Anyway. I spent an exciting 5 minutes trying to get it to fall off high hrothgar with Fus Roh Dahs proving ineffective. Then I just maneuvered it to walk off the cliff.