TEH

I was just thinking about something.

As I typed the word "the" for the 2,389,383,004th time, I made the mistake of typing it as "teh" for at least the 43,458th.

I can't be the only one, because one of my favorite comics, (Questionable Content) has its main character Marten with a "TEH" t-shirt.

But what I'm wondering is why are we so prone to make that mistake? Normally I'd look into this myself, but as I'm tyring to launch three more websites this week, I'm a little busy.

Anyone have any knowledge on this, or at least an actual theory?