This is Real and posted at many bathrooms:

Handwashing is the single most important procedure for preventing the spread of biological contamination. Despite this fact many laboratory personnel don't wash their hands properly. Here are some handwashing tips and procedures for your use.

1. Consider the sink, including the faucet controls, contaminated.
2. Avoid touching the sink.
3. Turn water on using a paper towel and then wet your hands and wrists.
4. Work soap into a lather.
5. Vigorously rub together all surfaces of the lathered hands for 15 seconds. Friction helps remove dirt and microorganisms. Wash around and under rings, around cuticles, and under fingernails
6. Rinse hands thoroughly under a stream of water. Running water carries away dirt and debris. Point fingers down so water and contamination won't drip toward elbows.
7. Dry hands completely with a clean dry paper towel.
8. Use a dry paper towel to turn faucet off.
9. To keep soap from becoming a breeding place for microorganisms, thoroughly clean soap dispensers before refilling with fresh soap.
10. When handwashing facilities are not available at a remote work site, use an appropriate antiseptic hand cleaner or antiseptic towelettes. As soon as possible, rewash hands with soap and running water.

Here's my notes on common mistakes:
7 out of 10 surgeons agree that washing hands is important.  As you get started on your new hand-washing life, you’ll want to watch out for these early pitfalls which are commonly made when learning:

- Only washing one hand
- Failing to use soap and water
- Washing hands in toilet instead of sink
- High-fiving after washing
- Washing feet instead of hands
- Using mouth to turn on and off faucet
- Drying hands with a paper towel from the garbage
- Not removing your hands from under the faucet when completed


© 2007 Todd Meierhans