WARNING, SPOILERS... for a 20 year old game (would I really need to put up a tag? I'll do it just to be safe, it's probably less well known than ____ Dies)

I've been replaying FFVII, and I was always confused as to why Sephiroth laughs at the mention of his father. He also treats (SPOILER)Hojo with an incredible amount of disdain whenever he mentions him and talks about his rival, Professor Gast in a comparatively reverent manner. So, I know Daddiroth says Sephiroth doesn't know right before the former's boss fight, but I always had the impression that Sephiroth DID know and was ashamed of him. It makes more sense for Sephiroth to laugh at the idea of such a man to be his father, rather than having no idea who his father was.

(SPOILER)Or maybe it's because for all of FFVII's many accomplishments, consistent writing isn't one of them sorrynotsorryIstilllovethegame

Anyway, what do you guys think?