I was an engineer at a company that manufactured rockets. One day while washing my hands in the restroom, I noticed a Safety Engineer exit a stall and walk straight out the door without spending any time at the sink to wash his hands. I thought to myself how nasty that is. I then walked to the module where my office is and noticed that that same nasty handed engineer was at the area where a few boxes of doughnuts were (a Friday tradition). He picked up one doughnut and changed his mind and set it back in the box, the picked up another doughnut and changed his mind again. Finally, he made a selection that he settled on and then walk to his office. I looked at the doughnuts and decided I no longer was interested in eating doughnuts that may have more sprinkles on them than there were a few minutes ago.

People who don't wash their hands after using the restroom walk this planet. At least the lady who needs new toilets doesn't likely miss the hand washing routine that clean humans do.