Don't Shake Hands

When I was teaching, a colleague with a medical background told me that one way colds circulate is by people shaking hands. Even people considerate enough to wash their hands after using the WC often do not do so after blowing their noses. Indeed, even people like me who wash their hands when they can, often need to wipe their noses when no washing facilities are available. Therefore

DON'T SHAKE HANDS !!!