Someone just might forward the message to them. One spill can turn your keyboard into a paperweight. Don't trade software, even with friends. You don't know where those diskettes have been. Don't bring outside diskettes to work.
Viruses can easily hitchhike on diskettes.
You cannot catch a virus simply by reading the text of an email. Please stop the spread of this rumor. Don't rest your wrist on hard or sharp surfaces. Move your entire arm not just your wrist. Make sure you don't bend your hand up at the wrist or angle it from side to side.