Once I walked out of Riften only to be attacked by a group of thugs. I was quite a low level so they messed me up pretty good, managed to kill all three with about 10% health left. Looked at there corpses only to find a note from Adrianne Avenicci telling the thugs to kill me if they see fit. This was obviously because I burgled her shop but I still felt like she needed to be dealt with. I traveled to Whiterun where I waited on the balcony inside the shop until closing time, when she went to the door probably to lock it for the night I shot her in the spine with a steel arrow dipped in poison. She died instantly. Then her husband cries assassin and runs out the shop. I then proceed to shoot her in the back of the head while she lays dead on the floor with two more steal arrows and then steal all her items including her clothes. Then I walk out the shop where her husband is cowering in fear in the street and just stand there laughing to myself.
Now, everytime I go to warmaiden's her widowed husband greets me with ''I should bash your face in after all you've done!'' but proceeds to sell me gear regardless, probably out of fear of me kicking his ass. I did invest in his buisness however to help dull his pain so it wasn't 100% an evil act.