We call jumping cholla "puppy eating cactus."
One fine winter day we had the doors and windows open, enjoying the perfect weather. Then we heard something dying. Or perhaps it was one of hell's minions. We didn't know what, but it really raised the hair on the back of one's neck.
A few houses down the street we found a puppy tangled up with a cholla. Nobody home when we knocked on the door, so we bundled it up in a towel and took it to the vet. Sweetie had a heck of a time holding onto it, there being only a few spots on it that weren't covered in cactus pads. We gave our credit card number to the vet to secure payment. The vet had a hard time finding a spot for an IV so it could put the dog under. It took many hours for the vet and two assistants to remove the bowls (yes, bowls) of spines from the poor puppy.
It was bad news to deliver to the neighbor when they returned home. It turns out the puppy had got out when they left to go somewhere. They made good on the bill, which was substantial, and the puppy did alright. I doubt it tangled with another cactus ever again.
I've run into cholla few times out in the desert, but instead of feeling unfortunate, I count my lucky stars that I'm not in the same lot as the puppy that got eaten by a cactus.