Holly- Command Rules

  As soon as Juliet's footsteps had faded, Holly began smashing the bed into the concrete. That was the thing about fairy bonds. The instructions had to be given eye to eye, and they had to be very precise. Just saying there was no need to do a thing wasn't specifically forbidding an elf to do it. And another thing, Holly had no intention of escaping from the house. That wasn't to say that she didn't mean to get out of her cell.

-Artemis Fowl, Chapter 6