Why would somebody be dropping a car battery on somebody's skull on the bus?
Did you lose track of the scenario we're discussing here? This is about horses getting onto a bus - large, dangerous, and unpredictable animals who shouldn't be allowed near random people. This isn't about Steve, the guy who goes around assaulting people with car batteries in this weird make-believe hypothetical scenario you're trying to force people to argue against when we're talking about a thing that actually happened.