This is why leopards like to eat dogs.
Many cat-hating European dogs that had been imported to Africa met their end when they took off after the big spotted kitty.
A dog is nothing more than bigger, fatter, and more gullible black-backed jackal to a leopard. The fact that this unusual jackal would have been advancing upon the leopard at top speed merely would have helped the predator in its endeavor to get a canine snack.
Laurens van der Post wrote about leopard predation upon dogs in Southern Africa in A Story Like the Wind. Although his novel is fiction, it is based upon his real life experiences in the bush.