Besides fluffing the mutt's bed every night and allowing him to lick the remnants of his Dr. Pepper can (and then continue drinking from it), this is just the sort of thing Caleb would do for Bear.
Me on the other hand? Well, I'd hesitate. At the very least.
I don't know what I would do actually, though I can't imagine diving into the water when I know without a doubt that it contains a very hungry shark.
I can't imagine standing there idle either.
Maybe search for a very large rock? A stick? A lifeguard? Someone burly enough to battle a shark?
Am I alone? Would the majority of the population really jump in and attack a shark?