The middle pocket of your apron where you keep your pens. Can also put your rubber ducks there if you don't want any French girls stealing them.
Also known as the "Holy Pocket" by some. Anything you put in it is 100% safe from others. The perfect repellant.
Me: *reaches in middle pocket*
French Girl: "Why are your hands in your no no pocket? Ewwwwwwwwwww. Groooooooossssss!"
Me: "I have two words: Cash. Office." *winks*
French Girl: *visible disgust*