Momnesia

Scott loves to have his back scratched, which is great, because I'll take any reason to touch him.

Scott: I must have been a cow in a former life because they love to scratch. My grandfather had a barn and the wood was just worn away from them rubbing up against it.
Me: Maybe you were a flea in a former life, and you caused a lot of itching.
Scott: AHAaaaah. And that's why I itch all the time.

Well, your psoriasis might have something to do with it...