It makes no difference who you are, or what you do for a living - you must deal with people every day.
Lying for some people is a hobby, they just do it for fun - from children to adults of every kind.
Lying for others is part of their profession - Spies, intelligence agents, criminal investigators and more.
And lying for others comes natural to criminals, thieves, and violent people who want to harm you and take everything you own away from you.