I think this will qualify as a strange event in the wild--even if it did happen in the living room!
When we acquired my father-in-law's farm in Alfalfa County, Oklahoma, my wife's niece was living in the double wide across the driveway from the main house. She had been taking care of her grandpa for some time. We allowed her to continue living there: it is good to have someone there watching the place, and we kinda like her.
The last big Oklahoma wind storm removed the storm door of her place, and it hasn't been replaced. Apparently, the other night, she, her husband, and her dog all turned in for the night without closing the front door securely. Along in the night, she was awakened by a fracas in the living room. Going to investigate, she discoved Jack Buster, her cat, and a raccoon locked in a mortal struggle. She managed to get the raccoon out the door and keep the cat inside while sustaining bites and scratches from the 'coon. Which one pushed the door open? She does not know.
J.B., the cat, was covered in blood, and she expected him to have wounds. After a bath and a careful examination, she discovered that he had none. The blood must have come from the 'coon.
Her husband and her dog managed to sleep right through the happening.