I also wrote a serious story on my main account which you may find interesting just for reading. It's the story of what really happened on Bring Your Daughter to Work Day based off some unused soundfiles in Portal 2 where Wheatley talks about how he was actually the one who killed all the scientists with deadly neurotoxin, not GLaDOS.
http://www.fanfiction.net/s/7570629/...er_to_Work_Day
It contains a cameo by a certain Marrissa Roberts!