After watching several up-close videos of deer, I have concluded that their "graceful" image is propaganda and that they are in fact derpy gangly creatures
I'm not a veterinarian, but assuming the story is real, it sounds like the deer has spongiform encephalopathy, or one of those conditions that make you do really stupid, counter-intuitive shit.
This is probably where stories of skinwalkers come from because if I saw this shit in an age before germ theory I would throw myself down on the ground and weep for god
they're like greyhounds or other fast running animals. they look incredible during fast locomotion, pure grace and their form suggests their function, so they look majestic when standing alert, ready to run.... but when they are just puttering around, taking a dump, or trying to get at something... they are a complete absurdity.
They're so damn dumb too. I walk outside and they get scared, run into the fence, sometimes multiple times, turn around and run right into oncoming traffic...
It actually makes me feel pretty terrible, in some way I not only get the idiots killed I also ruin someone's day as their car is now fucked up... Stupid deer.