Karen often wondered why she'd gotten with Plankton in the first place. After all, who would be the wife of a so-called evil genius who had a surprisingly loose grasp on the world around him and had most likely gone insane over the years? Who would be stupid enough to put up with it? Every day she thought about it, trying in vain to remember what possessed her to be installed in his life.
Then every night Plankton plugged in his "USB pen", and the answer came back to her, if only for a little while.