[Pyramid*]

Ach I make tons of them - some I'll amend, some I can't be fooked.

If I'm typing too fast, sometimes letters will be missed out - just by being too light on the actual keyboard.

'teh' is one of mine too, again I think it's typing too fast, getting into a habit of doing it all the time.

Usually any typos are glaringly obvious it's a typo, rather than being due to idiocy.