Here we go again

Well a new kitchen installer showed up today since the other one left and never came back. This was my new favorite person until.......you guessed it he just went and used the bathroom. he didn't even ask. AND there is a job Johnny outside, nicely decorated I might add. Why does this always happen? When I'm in someones home I always ask to use the restroom. I know this house looks like a construction site but why do these guys have to act like the pigs they are?????? Maybe I should put up a sign in the bathroom door. Out of Order, For Owner Only. What is a women to do when people have no manners?