With all due respect to the jobs where someone has to endanger their lives. policeman, firemen, military personnel, etc.
IMHO - The worst jobs in the world are the ones where employers don't readily allow you to take care of bodily functions. It's very tough to concentrate on work until someone can relieve you of your duties.
One feels like a little kid in having to raise their hand to tell everyone that you need to use the restroom. Very embarassing to have people constantly know of ones needs.
Just sayin........but TMI
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).