Lying

Grandma knits a sweater for you. You don't like it, so what do you do when she asks what you think?

A cashier gives you too much change when subtracting a discount. You realise, so do you tell them?

A friend asks you for a secret that someone else has told you. What do you do?

Your family is sheltering innocent people in a war. You are told to give them over to be killed. What do you do?