Hi, I wanted to get the best, most authoriatative and expert advice I could find and believe I've come to the right place. I'm very concerned about my sister---she's in college and loves studying for hours every day in the bathtub---she's got a 5/8th's thick 1' x 3' plywood board running across the bathtub right in front of her---on that board sits her laptop computer, her mouse, not to mention books, papers, occasionally food or drinks, ETC. The laptop is not running on batteries---it's connected to the wall socket. If the mouse or laptop accidentally drops and is knocked off the board and into the water she is sitting in, is she a goner? She's been doing this for months now.