When I worked for the United States Postal Service I had to use a doctor's note if I ever called in sick. I got written up because I told my boss “do you need me to puke on your desk for me to use my benefits?” He's also said “if you really can't work you should go to the emergency room.” TO USE MY BENEFITS! Also every morning i needed to make a commitment on when i would be finished(yelled at you for being back late and if you were early you got more work), this is impossible to gauge exactly when you will be done if you have 4,000 letters 500 magazines, and 150 packages(fluctuates every day). Would've retired there if that manipulation wasn't present, 4 years wasted.
P.S.- sorry for the punctuation.