Learning a bad habit from movies that affects someone depressed?

[Heatman]

One habit that's very common for almost every depressed person is being able to lie and cover up their depression. They are the perfect liars in my opinion.

This begs me to ask the question if they are natural liars before they even became depressed or it's a habit they pick up along the way and which can be learnt from certain movies.

What are your thoughts?