Tripping. Hallucinating. Seeing things. Call it what you will, this describes how coyotes are acting in West Marin, California. Drivers claim that coyotes are staring them down, running up to their cars, trying to attack, and, in some cases, stopping traffic. These bizarre run-ins have happened enough times as to make the Marin Humane Society look further into the issue. Now, Pacific Sun reports, there are three possible reasons for the coyotes' irrational behavior: mushrooms, rabies, or people.