If you really want to fuck with the player for not being "immersed" in the game world, saddle his character with backstory that will emerge as play progresses (but do it quickly). Like he's a wanted criminal for a crime he didn't commit or something. See - adventuring hook and developing backstory all at the same time!
+1
I had a lot of fun once with a character that came with a very vague backstory... maybe 3 concrete facts and a bunch of handwaving, with the rest fogged over as amnesia. The DM went to town with it and I played along -- turned out what the character
did remember was a warped echo of a past existence, the character was trapped in an abnormal reincarnation cycle, and was not quite as human as he thought he was, having previously been right hand to the setting's deity root of all evil. The character, his gradually revealed past, and his uncertain future ended up being a lot of fun for all involved, and integral to the story that unfolded. He's currently a demigod and direct servant of a Saint Cuthbert equivalent in that world, now.