Super Mario is always on the run trying to save the princess, but as he needs a minute to do his natural duties in a pipe, she comes in without even knocking.
Aled Lewis made this funny Mario image and proves that Mario does indeed need his very own Super Mario Bros Bathroom for some alone time.
There have been some other great amusing Mario creations made by fans, and one highly recommended are the Super Mario Brothers Life Lessons and the Super Mario Bros GTA Film.