Go check out this MeFi post; it’s video of a guy being sorta played with, sorta stalked by a coyote. Being Canadian, the videographer is unfailingly polite, which is kind of adorable.
It’s not 100% clear to me that this is predation behavior — a man is way bigger than a coyote, so a lone individual probably wouldn’t try to take him down — and the animal’s body language is very, very similar to domestic dog “play” behavior, but it’s still a neat nature encounter.