They have teeth, don't they? I slipped on a steep rocky hillside and sat down hard beside a spine-shot coyote once. He got my pant leg just about at the top of my boot. It got pretty western for a few seconds until I got unbuttoned from the coyote and pointed my rifle in the right direction. It's crazy how fast a spined coyote can drag itself on its two front legs.
Don't trust a bobcat either. My dad shot a big tom with a shotgun and it ran under an overhanging creek bank. Dad felt like it was dead under there and took a peek. The cat immediately slapped Dad's hat off his head with one claw leaving a bloody scratch across his jaw.