Far, far below the deepest delvings of the dwarves, the world is gnawed by nameless things.

Trolls simply detest the very sight of dwarves (uncooked).

And what would you do, if an uninvited dwarf came and hung his things up in your hall without a word of explanation?

Far over misty mountains cold To dungeons deep and caverns old We must away, ere break of day, To find our long-forgotten gold.

That was Thorin's style. He was an important dwarf. If he had been allowed, he would probably have gone on like this until he was out of breath, without telling anyone there anything that was not known already. But he was rudely interrupted.