How I Despice Lies

When is a lie is acceptable?

I would say never.
Lies just stops the ability to trust people. If someone want to be trusted , and they trust you in return. they would not lie to you. I guess the main reason behind lies is that the liar does not trust the person lied to, and this lie makes the person lied to not to trust the liar, no matter how small the lie is.
"If the lie about this, what else have they lied about"

I do not understand this need to lie. If your daughter's dog had to be put down, why tell her that the dog was sent to a big farm where he can chase sheep and have the time of his life? Isn't this your opportunity to explain about life and death to your daughter so that she won't fear death like so many others do?

My problem is that I usually can tell when people lie, but I would not confront them about it... probably because I already lost some of my trust in them. It doesn't do any good to ask for the truth if what they've chosen to present to you is the lie. I always try to give the liar an opportunity to tell the truth, but for some reason the lie just grows.

So why do people lie?

Some of the time it is to not hurt someone, but most of the time it is for selfish reasons: to avoid conflict, or to avoid to be forced to make a choice that they don't know the outcome of, or are not ready to face the consequences of. Why do they not realise that the lies always hurt so much more than the truth ever will...

Maybe we just lost the ability to talk to one another when they evolved from
wherever we came from. Is the Lie then what separate us from the animals, the reason why humans decided that they are the masters of the world? Could you say that our whole existence a lie? Or is that another assumption.