The simile has to match the tone of its surroundings and has to be like a little joke. Writing a simile that isn't funny on some level is quite hard.
Ned BeaumanSo intense was his sexual frustration that it had begun to feel like a life-threatening illness: testicular gout, libidinal gangrene.
Ned BeaumanPoliticians often like to suggest that their policies come about through objective thinking, but if you look at British fascists, for example, what you see - what I see - is a group of people coming to the decisions they came to because something happened to them when they were nine-years-old, or because of some deep prejudice that formed in them subsequent to that.
Ned Beauman