I'm sure it's not ethical to lie, but sometimes little lies can save lives.
The biggest unhappiness of people who lie is knowing that what they are saying is not true. And when they look in the mirror, they can never be happy inside.
In addition, people who lie think that the person in front of them never notices this lie, whereas a person who lies always makes the other person suspicious and suspicious. However, abnormal things can be noticed in every move of a person who lies in his behavior.
As a result, we can lie when necessary, even if we think we don't show it.