They severed the spinal cord of a rat?
Why do you make this assumption? They may well be finding poor injured rats and repairing their spines to try and provide them with a better life. Would you prefer they simply leave these rats to undoubtedly die from their disability? And if it was some other "evil" scientist who did this to the rat, is it not good that this scientist came along to try and help the rat? Would you tar all scientists with the same brush? Clearly the scientist repairing the rats spine is a saint, and not the devil you make out! And if it was in fact the same scientist in both cases, should the scientist not try and help the rat that he (perhaps unwittingly) injured? Have you never done something that later you regret; lashed out and hurt someone you cared about? Would you judge this repentant man for attempting to right a previous wrong? Where you there? Did you feel his utter anguish at the wrong he committed? His exultant joy as the rat took it's first step from his painstaking work? No! You eat your vegetables and consider yourself superior! This man looked into the darkness of his soul and turned and made a difference! And yet you judge him! Where were you when the rats cried out for justice? Where were you when they laid out the baits?! Hypocrite! For shame I say, for shame!