This is the first comic in a while where the joke was completely unexpected and hilarious. Marigold might not look much different, but we can't read how she smells, can we?
Speaking of odd toilet doors: There was a toilet in a Berlin restaurant where the doors of all the stalls were made of clear glass. No mirroring anywhere, you can see through both sides. Only when you go inside, close the door, and turn the lock, the glass becomes white instantly. Now that is pretty cool.