From being a gun-for-hire and also from a certain striped creature, Sebastian had scars. He didn't hate them, since he honestly didn't give a damn, but he wasn't fond of them either.

Despite the already thrilling backstories behind most of them, he would tell a much more dramatic verison of it.

Or make up an entire story for it, out of pure boredom...and also to see how wild his tale could get before someone rolled their eyes.