internet - On hoaxes

Do you have friends you would follow blindly? It is not my habit, but last night I got an email about a virus at a volatile moment - Saturday evening after meeting some other friends. I send out a warning to my address book and it took only minutes to discover the disgraceful embarrassment: it is a hoax. Fortunately it is not a harmful one.
So what have I learned? First, I do not have too many friends who would follow me blindly. I should be working on that. Second, it is a good way of getting in touch with people you have not seen for a long time. And thirdly, it is a good way to clean up your address book.
This on the positive side.