Today Is...Global Handwashing Day

With all this hand scrubbing going on over the last few years, the advice is that you wash your hands for 20 seconds but you need some sort of timer to know when you've reached that 20-second threshold and the NHS recommended song is Happy Birthday sang twice.
The British Government did make a half-hearted attempt to make the 'official' hand washing song 'God Save The Queen' but that didn't last very long but there are better well known songs that come in with a 20-second choruses, just don't skimp on the instrumental parts or the long held notes.
The chorus to Ironic by Alanis Morrisette is exactly 20 seconds as is Copacabana by Barry Manilow, You Could Be Mine by Guns N Roses, What's Love Got To Do With It by Tina Turner, Eye Of The Tiger by Survivor, Hotel California by The Eagles, Africa by Toto and even Greased Lightning if you can work out what the hell the chorus is, i have been listening to it for decades and still don't know what that second line is and was singing 'Go Grease Lightning, you're close enough to hit that child' which i assume is wrong.
Obviously as we are an advanced people and listen to scientists, there is one man in a white coat we have to thank for working out that washing our hands is the hygienic thing to do even if his reward for wandering onto History's highway and discovering something that changes the world for the better was to be ignored and die in a mental hospital.
Ignaz Semmelweis was a doctor and trainer at a Viennese Hospital and pondered one day why so many women who came to the clinic not only gained a baby but a deadly disease and a light-bulb went off above his head when he noticed that doctors were carrying particles on their hands and instruments from the autopsy room to the pregnant patients they examined and suggested they perform a simple hand washing task after handling dead guys.
As this almost immediately got the death rate down he wrote a book suggesting that doctors should wash their hands and instruments between the autopsy room and the birthing rooms to avoid contamination but rather than be chaired on shoulders around Vienna in triumph, what happened was monocles popped out all over Europe as the continents stuffiest old coots harrumphed in rage at the suggestion that doctors hands were dirty enough to kill people.
Semmelweis was dismissed from his job at the hospital, began drinking heavilly and ranted about his doctors were continuing to kill patients and the medical profession invited him to have a look at the new Viennese Insane asylum which proved to be a bad move on his part because when he got there they beat him, threw him into a straight jacket and locked him in a cell where he died two weeks later.
It is probably little consolation that many years later scientists confirmed his idea, called it Germ Theory of Disease and the rest of the world came around to the concept of washing their hands to keep from getting sick and decided that he wasn't a nut after all. Ooops.