I've done it before and I'm doing it again.
For historical purposes, my current description stands here:
Cog is a super-hero, but don't tell anyone this time, or he'll have to make use of his memory erasing super-powers again.
Another particularity about Cog is that he finds the most unexpected things to be adictive, such as writting about himself in the third person.
Everytime he does that, he seems unable to stop.
Fortunately, somebody implemented a maximum size for this little box.
On a side note, the meaning of Cog.