Mulch- Goblin Bite

  Mulch backed up even further. He'd been hoping the remaining goblins would lose their nerve once their leader was out of commission. Apparently not. Even though it was most definitely not in his nature, Mulch had no option but to attack.

  He unhinged his jaw and leaped forward, clamping his teeth around the foremost goblin's head.

  'Ow, bagg off!' he shouted around the obstruction in his mouth.

  'Bagg off or ur briend gedds it!'

  The others froze, uncertain of their next move. Of course they'd all seen what dwarf molars could do to a goblin head. Not a pretty sight.
...
  Mulch resisted the impulse to bite down. It is the strongest of dwarf urges, a genetic memory born from millennia spent tunnelling.

  The fact that the goblin was wriggling slimily didn't help. His options were running out. The gang was advancing and he was powerless as long as his mouth was full. It was crunch time. Pardon the pun.

-Artemis Fowl, Chapter 7