The phrase "banging your head on a brick wall" implies the futility of an effort. In "Hunters of the Dusk" by Darren Shan, this phrase is highlighted with a twist. It suggests that while such an effort seems pointless for most, vampires possess extraordinary strength, allowing them to literally break through obstacles that would typically frustrate others.

This clever turn of phrase emphasizes the unique capabilities of vampires within the story. By showcasing their supernatural prowess, Shan not only challenges the common perception of struggle but also invites readers to rethink the notion of perseverance and the potential for overcoming formidable challenges.