Attempting to know a person's password should be very difficult, but not if one is really good on using the art of social engineering. It has been proven that by just asking smartly, we can find out the passwords American use as their daily driver.
On the recent Jimmy Kimmel show, they did what is called the original form of hacking, which is social engineering. They wanted to find out if people were still crazy enough to give out their password despite knowing what is going on. Obviously, the plan did not disappoint, as several folks were so willing to give up everything.
It was quite funny to see how a person with a mic and a man pointing a camera so easily tricked some Americans. We can only hope that after this little social experiment, citizens in America and around the world learn not to give out their password to anyone, not even to the Queen of England or to Zeus himself.