Let's say you're about to embark on a cross-oceanic sailing voyage. For safety reasons, you think it's best to bring another living being with you who can help if things go south or you are incapacitated.

Are you going to bring another human, or a goat? Can a goat navigate while you sleep? Can it apply first aid to you? Can it respond on the VHF radio if you get hailed? Can it operate the bilge pump?

Embarking on a cross-oceanic sailing voyage seems to be a particularly human brand of tomfoolery. Why not just stay at home with the goat?