Watch out of those drive by Pee'ings

Never could quite understand why men's room bathrooms are locked? In larger office buildings in the suburbs of Chicago they all seem to have locked doors. Are we afraid we might get mugged or assaulted while using the facilities or maybe they are afraid I might strip down and take a bath tin the sink? I don't think I've ever thought about going prison style on the guy in the next stall over. I hope no one has thought about doing that to me in any case! I can understand women wanting privacy, but really do men really need protection? I really wish they would stop locking the door because it is kind of embarrassing to ask a random strange if you can use their bathroom key! Anyway to all you men out there... watch your backsides cause someone literally might be watching yours....