- If you're the only atheist in your family
- If you a non-conservative living in a conservative household.
- If you're a closeted homosexual living with anti-gay relatives.
- If you like to cross dress secretly because even though you're a non-gay male you were born with a very feminine looking body with small hands and feet, narrow shoulders, and an hour-glass figure and have realized that you make a better looking woman than you do a man and hey "you're just trying to work with you have, you want to feel good about yourself too dammit".
Just saying, there's lots of things to hide from other people. Politicians know what I'm talking about.