Half-truth or half-lie ?It is a habit of some people who neither can offer you pure truth nor pure lie, they are to adulterate both truth and lie. If you hear something from them you also know that their information can't be hundred per cent reliable because everybody knows about their habit of mixing truth with a lie. You may take their test how this strange habit is ingrained in their mind. If you tell that Arun raised his hand to beat Vikas but he did not beat him. Now, this simple information will pass to different people of this sort and when information reaches you it might have been changed that Arun thrashed Vikas on the road, Vikas was crying for help but nobody came but I (narrator) took him to hospital and got him treated.
The reliability of information is defiled when the number of such people is increased in this chain of narrators. I see very few truly truthful people.