This happens before you are even allowed to move. You're stuck there, forced to watch him do that in front of you. In The Elder Scrolls IV: Oblivion (another Bethesda game), you get glitches like this terrifying video of an adorable little kid who starts spinning around like a human Ferris wheel. While staring at you.
"Can you help me find my teddy bear, mister?"
"I think I left it over here ..."
"Or maybe ... over here ..."
That sort of shit can happen in the middle of the game, with no warning or explanation. Some enemies will inexplicably melt into a pile of liquidy goo after you hit them, and they'll just stay there looking like a piece of human gum stuck on the carpet unless you resurrect them with a spell.
See, normally, we have to write mods in order to make that happen.