Room for two?

Living on ones own is all very well, but I think I might become too stagnant and selfish if I do it for too long. Not only that, but my boat has room for another, so I have been thinking about getting a pet. I am not exceptionally good at looking after myself, and I am not overly fond of pets, so I have for sometime been thinking about the ideal creature for the boat. I am not at home enough for a dog, and cats make me sneeze and wheeze. I did think about a goat but it might eat my shower curtain, and that left a sheep. The advantage of a sheep was that if I found I couldn't look after it, I could eat it. The size of a sheep can be a problem, so I thought about a ferret. Ferrets are cute, but they might eat my electrical cables.
As you can see, this has taken a couple of years to resolve. I am keen for the company, and like the idea of having something to look after - the discipline would be good, and the routine will add some order to my otherwise chaotic existence. After much deliberation and discussion I have decided to buy a fish tank. I am not sure that I will go the whole hog and buy an alive fish to swim in it, but if the tank goes well, I think I might.