It would have had me really going if I'd found that in my yard. We're so desert though, that we don't get raccoons or bear. They are a problem in town and at Tahoe but here we only have the worry of coyotes and occassionally a mountain lion.
Mountain lion would give me even more cause for pause.
Boarding stable 15 miles from here awhile back said they had eliminated pasture only board and were bringing all horses in the barn at night because a horse had been attacked by what had to have been a couger. Tore up his back. Horse escaped though. They do butt right up to forest land. They aren't common here, but they do exist.