I... Have been incredibly poor to my dwarves in the close past, particurally children. After getting several "man"child dwarves at ages like 21 and 18, I decided to create a special burrows located outside of the fortress for the sole task of having them kidnapped so I didn't have to deal with them anymore. This seemed to be the best way to get rid of the little partying booze-guzzling savages, as their parents don't get bad thoughts from their disapearence, and goblins get a new friend. But, I decided that from now on I shall let them have existence in my fort without the fear of going into the outside world.
Rather, I've decided now that I'm going to try to be at least vaguely benevolent to all races. Traders shall be treated fairly, even if they are elves. Nay, they shall not have to fear a steep drop into a ravine because the whim strikes me. If invaders visit my fortress, they shall be caged and declothed, then promptly released back into the world. The only exception will be made for notable members of the enemy civilization. They shalt be dealt with harsh punishments, and death by a thousand alder training sword blows. I'm tired of having to kill everything that moves because the AI forces my hand. But the only way to stem aggression is to cut off the serpents head. Likewise, ambushers will not be tolerated and will be struck with deadly force. Vampires will be permachained to a wall after I discover that they are indeed a vampire, by locking the door to their chambers, so that they cannot be released.
As an adventurer, I shall no longer go on copious killing sprees of the innocent simply because they don't seem to like me. I shall try not to take their socks, especially when I do not require a new pair of socks. If I become a vampire, a werebeast, or a necromancer, I shall not turn evil and start to kill every poor soul who helped me to get to this point. Rather, I shall instead continue on as if nothing happened, and not become strangle happy.
I don't do these things yet, but I will sometime soon.