Hammer Time

Dave isn't too bright, or perhaps he just has some very un-unicorn-like ideas. In the economic slump hitting the kingdom, he decided he ought to get a job, but nobody really wants to hire a unicorn blacksmith (this being his chosen profession) since they aren't very good at wielding the tools. Therefore, Dave has to run a dodgy, backwater blacksmith's shop. It's not very popular yet, but he's sure that as soon as everyone finds out about it, the crowds will flock.

Either that, or he's a pacifist and is going about ending war in the least efficient manner possible.

Edit For all the people who can't see one of his ears: i47.tinypic.com/b4b2ox.jpg