But isn't that at random? He's a tailor at this point in the show, not an intelligence officer assassinating targets for his job. Doesn't "I have a list of enemies and I might kill one of them" sound slightly psychopathic? Garak does come close to being revenge-driven when he reconnects with Tain and rejoins the Obsidian Order, stating he has people he wants to take care of (such as Dukat), but I don't believe he outright says he's going to kill them, it's something much more subtle and discrete.