I wouldn't shave my head on a plane. If I had to go directly from the airport to a business meeting, I would either shave at home before the flight or in the airport after landing (depending on length of the flight).People do strange things on airplane flights. A few years back, a young woman decided to put on nail polish, and the smell was akin to a gas attack. I also saw a guy clip his toenails on a flight. Given the lack of room between rows, he was contorting himself to do it. Hopefully he pulled a muscle or two!