You've walked into work and told your boss that he was a fucking moron when you saw something that angered you immediately? Lieing about feelings is a basic human skill. If you never lied you would be a constant stream of unsociable behaviour that would get you shunned
Minor lies are such a part of human society that it's a sign of some disorder if a child is actually incapable of lieing
A lie is saying something that's not true. It's not suppressing the a compulsion to act like a total jackass, no matter how much you really want to. If my boss asked me for an opinion on something I thought was a bad idea, I'd express my thoughts (with empathy). Honesty is not immediately blurting out every thought that passes through your mind, and it's not dishonest to withhold information that people aren't entitled to. You're (perhaps intentionally) confusing honesty with openness. Sometimes it takes courage to be honest, but in my opinion, there's more dangers in dishonesty.
I've never thought my boss was a "fucking moron". While there have been things that have made me frustrated or irritated, I believe I have enough maturity, and so does he, that we can talk like adults and either come to a compromise or better understand their actions/decisions and them understand mine.
I don't know what kind of world you live in where not blurting out the first insulting comment is considering lying...
