Nobody is 100% honest. If a close friend or much loved relative asks if you like her new dress, or his new car, or does my bum look big in this, do you still find me sexy? etc etc.... you are NOT going to hurt them and tell the truth are you? Oh yes, you're bum is the size of Yorkshire. Oh, your new dress makes you look like a 90 year old. Oh, your new car is an old rattler, no you are NOT sexy , you fat old sod. NOBODY is going to tell the truth to someone they love. We lie all the time e.g. Nice to meet you, pleasure to meet you. You are welcome. Happy to help... and that's just to strangers.