I see that you have sent me a warning about a computer virus that can destroy my hard drive, mangle my software, and generally wreak havoc on my computer. However, you may not be aware of the fact that warnings like this one are almost never real. When a message asks you to forward it to everyone in your address book, you should know immediately that it’s a hoax. Users who send false warnings about viruses to hundreds of their friends are not doing anyone a favor; instead, they are simply slowing down traffic online and creating problems that may be worse than any technical difficulties caused by the virus—if the virus even exists. Please ensure that warnings contain a grain of truth before you pass them on. If you’re worried that my computer might be in danger, set your mind at ease. I will accept responsibility if the machine goes haywire.