When I was younger I was out in the Minnesota River bottoms with my BB Gun, and was fiddling around with a wounded rabbit call. I heard some rustling in the bushes about 50 yards out when a little red fox flew out from this large bush running straight at me. Without thinking I put my leg out in front to block it. It just kept running at me and its head slammed into my boot, the little fox looked up at me, had a brief moment of "Oh Shit" eyes and took off running. I let the cute little bugger go. I don't know who freaked out more, him or me... I then realized it likely wasn't too smart to be using a wounded rabbit call when you're only armed with a BB gun. I might have encountered something larger (like the cougars that reportedly sometimes travel up & down the river flats).
I'd like to someday try my hand at coyote hunting, but I've got to have time & $$ to do that (not to mention an operable AR-15).