One day a boss said to her employees, "I can fight and beat any man who works here."
A new employee, a seven-foot-tall ex-prize fighter, stood up to take on the boss.
The boss kept her word, but did not beat the man or back down.
What did the boss do?
Presume that you do not know what a rhino looks like. Now the question goes like this:
If one day while walking in a forest with two of your close friends, one friend shows you an elephant and tells that this is a rhino, and another friend shows you a hippopotamus and tells you that this is rhino, who would you believe and why?
I told you that you do not know what a rhino looks like, not that you are unaware of what a hippo and elephant look like. So you shouldn't believe either of them.