Maybe naive, but what about comped comms? Manual processes can be initiated by giving the appropriate codes and commands?
Maybe we should make a list of all the celebrities that are ripe for doorknob justice, and start inundating them with red scarves.
During a race - probably involved some fence jumping. Pretty dangerous, steeplechase jockeys get badly injured often enough. Horse goes to jump, you lose your seat and off you go. Then a misplaced hoof on your person and it's goodbye. Sometimes the horse jumps badly and ends up on top of the rider. That's often fatal.
Just guessing, without more info. But foxhunting isn't allowed anymore, so… racing over the fences is the next best thing.