#4: Don’t Speak…
There are some people out there that have always been nervous, self-conscious, or even paranoid about talking on the phone. Considering that the phone allows two or more people to talk to each other through a specific line, who’s to say that someone else isn’t listening in on that conversation too?

Well, this person’s brother works as an FBI agent and tries not to talk on the phone. The joke that someone else is always listening apparently isn’t much of a joke… How else did we expect these agencies to pick up on top-secret things without listening in on other people’s conversations?