Here I sit at a coffee shop.
My table is right next to the men's room.
Because the men consistently leave the door wide open, I'm able to see that it's a single stall type of bathroom. - open the door and there's the toilet and sink.
I cannot even begin to count the number of men who have entered and left in less than 30 seconds flat.
Flush! Wash your hands!!
And hey you! Yes, you Mr. I Think I'm A Stud -- do NOT open the door and THEN decide to zip up!