It's not a fact, but a first-hand recount of a first-hand experience. The bias of a person of themselves affects that on at least two levels: first, on how they

It's not a fact, but a first-hand recount of a first-hand experience. The bias of a person of themselves affects that on at least two levels: first, on how they perceive their own deed, second, on how they recount the perception of that deed.