Can you put a mirror behind the toilet?

1, the bathroom mirror can't be placed facing the door. Because this will create an impulse, and if the bathroom door is not closed properly, the scene in the room will be reflected in the mirror, just when someone walks by, they will be scared by the virtual shadow. 2. The mirror in the bathroom cannot be placed opposite the toilet. Because the toilet is convenient, you don't need to look in the mirror when you excrete dirty things.