[quote=@Legend] But you could use [i]me[/i] as your control. I don't have anything wrong with me. [/quote] How would we know that for sure? True, I don't think there's anything [i]wrong[/i] with you, but choosing you as a control group would only work if we knew for sure that there were enough similarities between you and your siblings to make it viable. Right now, I don't have enough information. Which leads to a lack of tests that I can do that need a control group, as well. *Pats your head* Besides, you've got a great mind in there. Let's focus on putting it to good use before worrying about testing anything against anything else, okay?