I've heard about this and it apparently goes much farther than that. I heard that Howe was literally having....ultimate satisfaction....with the dolphin and when the scientists finally took Peter away, he committed Self Delete. What I have trouble with is how a dolphin would commit Self Delete.
Dolphins are mammals and they need air to breathe, so have to return to the surface.
Apparently dolphins can (and do) commit Self Delete by choosing not to return to the surface, so that they suffocate and drown.
