Why do sardines stink so much if they are that good?

You have to take the can that the sardines came in out right away because if you leave it in the garbage can in your kitchen it stinks up the whole house. You have to drain and flush the water or oil that they were packed in right away with lots of water unless you enjoy smelling a big stink. What they do after you eat them? Do they rot and stink in your intestines too? I would think something that is that good wouldn't stink at all. Tweet