Butler- Teflon Shots

  'Guess what I found?' he said, raising the Sig Sauer.

  No chest shots this time. Butler laid in the rest of the automatic's clip in a ten-centimetre diameter between the troll's eyes.

  Unfortunately for Butler, due to millennia spent butting each other, trolls have developed a thick ridge of bone covering their brows. So his textbook spread failed to penetrate the skull, in spite of the Teflon-coated load.

  However, ten Devastator slugs can't be ignored by any creature on the planet, and the troll was no exception. The bullets beat a sledgehammer tattoo on its cranium causing instant concussion. The animal staggered backwards, slapping at its own forehead.

-Artemis Fowl, Chapter 8