User blog comment:FairyRaven/Fairy Tail Chapter 387: Tartarus Arc, Part 4: Father and Son, Review and Commentary/@comment-5593752-20140606115000/@comment-7418318-20140607081739

I can understand why you wouldn't count Gajeel's attack on Shadow Gear. While that was done on his own initiative (Jose only ordered the attack on the empty building) it was still an extension of his mission.

But he tortured Lucy for fun and then tried to kill her just for the kicks, even against Jose's direct orders.

At least for me that does qualify as evil.