I have never known anyone who made such a cross on purpose, but I have known people who raised a coydog pup out of a domestic female dog who got bred by a wild coyotes. One that comes to mind was the product of a female Gorky and a wild coyote. He was a male, cute as could be, and smart as any dog I have ever seen. He would follow his owner from their home near a golf course, and stay just behind the two golf carts and he would lie down until all 4 people playing had hit their next shots. Heck, he had more etiquette than a lot of humans I have known. (LOL).
My nephew raised one that he got as a puppy from a friend, and he grew to be about the size of a lab, and he was never anything but a good, smart pet.