Sith Happens. Dude, I'll bet it's especially Sithy when Sith happens to Vader and he's gotta take off the entire bottom half of a life support system to relieve himself. I thought I'd experienced the worst of the worst myself when I ate a bad fish taco during a SCUBA trip. 60 feet under, wearing a full-body wetsuit, and the only thing waiting for me at the surface was the head on a 30-foot dive boat. Sith Happens.
And here's a toilet decal to remind you of it, and maybe help you to appreciate all the times you do make it to the toilet without losing your Sith.
The Sith Happens decal measures 8" tall x 8.2" wide, though maker Remarkable Walls notes that custom sizes are available should your toilet seat require one.