I have no problem with this. It was him making his sit in the boat and flick the flashlight on and off when he wanted to turn that I had a problem with.
My girl friend holds the flashlights. But I also got her a pair of led flashlights for the brake and turn signals.[brighter than the tail-lights] i just open the sliding rear window and yell:"left turn" "right turn" " brake" .
My dad did that one night at the hands of a state trooper, a little duct tape and a couple flashlights work like a champ. Unfortunately he's a little better at improvising than actually fixing.