Well, then, you haven't fished Alaska, have you?

Seriously, I understand your point. I personally am in favor of some negative reinforcement to teach them to keep their difference. Let me just say, based on a story I heard from someone that I didn't know real well, who heard it in a parking lot when the people didn't think he was listening, that it one has some of the larger M-80 style firecrackers, with the waterrepellant fuse,and one coats the fuse hole where the fuse enters the barrell of the firecracker with silicone or some such, and then one wraps the fircracker with about 1 inch of pencil lead, and then one were to present the firecracker to the sealion in the water at a range of 15 to 20 feet (they said a wristrocket worked well), well, my friend who isn't heard the guy in the parking lot say that the sealions tend to depart the area quickly, unless they are in immediate hot pursuit of a fish. Then it takes two or three of them.

Or so I've heard. I have also heard that it['s hard as hell to light a firecracker while you're drifting out of the line, grabbing for the net, and trying to stash three rods while your friend is fighting a 20 lb'r with a sealion on it's butt. If you know what I mean.