A Real Killjoy (3:28)
IMDb; Tara Erickson; YouTube

A woman sits alone, outside, with no one around as far as the eye can see. She gets a call over a CB radio or whatever, but has to hang up when a zombie shows up in the distance, and she prepares to kill it. But there's a bit of a complication, which I don't want to spoil. It's a kind of amusing short. And apparently there's a sequel, or maybe it's still being worked on, because I can't find it to watch anywhere.