I made a discovery today: The shavette can be a little like a puma on catnip at the best of times, but it really doesn't like surprises caused by other people and has a tendency to attack you if it unexpectedly finds you are being unfaithful to it by sharing the bathroom with someone else.
Got my first proper "cut" as a result, and the air went a funny shade of blue for about 10 seconds...
Jason