Believe me, a dog or a cat in a foot hold trap was most likely never set by a real trapper, but rather some ding-dong who's uncle had some traps hangin in the shed and he wanted to get rid of "whatever was eatin' his tomaters"
This is ridiculous. Of course a skilled trapper can catch a domestic animal in a dirt set with a leg trap. The enticement lure will do the same thing to a dog and cat as a coyote and a fox. If domestic animals are allowed to roam, they can travel some distance and get into areas where we would not expect to see them. They are still there, and are hunters just the same as foxes / coyotes.
I know guys that catch hundreds (and i am not exaggerating) of foxes / coyotes a year. They tell stories of all kinds of stuff they catch besides these animals in their traps. I have even heard of a red hawk being caught in the leg trap. You should have heard the guy tell the story of how he released it, exciting to say the least. But they get many, many cats each year. Mostly because humans are ingnorant and either let their pets roam, or neglected their pets to the point where they have become feral. Not the trappers fault, in fact, some might argue they are doing a service by removing these nuisance animals (They are very, very hard on small game animals). Unfortunate for the animals, i have always blamed the owner in these cases. The animal can't think for itself, or inherently just know the property border they are supposed to confine themselves to.
Also, one small knock on woods walker....
"When trapping land based animals, a good trapper DOES NOT hard stake a land set. That would give the trapped animal a firm anchor to pull from, and maybe pull out. In this case a drag grapple would be used so that the animal could not get a firm pull on the trap, but yet couldn't get that far from the trap site either. "
The same guys that catch hundres of animals a year typically employ a staked set. The only sets i know of that they use a grapple for are in creek beds for raccoons and such. They use an 18" stake which is usually very difficult for the human to remove when he is done. I have never heard of them having a fox / coyote run off with their trap still attached to their leg. That's all, we are in agreement for the rest.