What's madness? Only something just a tiny bit wrong in the make of your brain. Why shouldn't there be a mad ship--I mean mad in a ship-like way, so that under no circumstances could you be sure she would do what any other sensible ship would naturally do for you. There are ships that steer wildly, and ships that can't be quite trusted always to stay; others want careful watching when running in a gale; and, again, there may be a ship that will make heavy weather of it in every little blow. But then you expect her to be always so.