Rabid? Are you serious? Rabid dogs stop only if they're hurt enough or too exhausted to continue.
This is an escalating fight scene. This is how they work. It's not like he started out crazily gunning for Atlas, he's trying to help his master and hurt the guy who hurt his master . . . and someone keeps trying to drain his powers, and he's not giving up.
If you make Krypto a human (or human-seeming alien) and make it a friend-and-friend relationship instead of a pet-and-master relationship, would you think Krypto was rabid?
Aaron "The Mad Whitaker" Bourque; I think you're a speciesist!!!