Why that one?
Electric shavers!?!?!?!?!
How did that make the list? If you've got a better safe than sorry approach, surely whoever is riding the plane can put off shaving for the duration of the flight.
That no man should scruple, or hesitate a moment to use arms in defense of so valuable a blessing [as freedom], on which all the good and evil of life depends, is clearly my opinion; yet arms ... should be the last resource. - George Washington