Mimi was one of your finest achievements. SIR units are the closest an INVADER comes to having a friend, who also doubles as a servant of sorts, and Mimi was the best. Not only did you build her from SCRATCH, but the only supplies lying around at the time were huge mounds of TRASH. She was the perfect familiar, and did everything you told her to with approximately 33.0% greater accuracy than normal SIR units. You are sure that if there had been some SIR UNIT COMPETITION she would have come in FIRST PLACE.
Needless to say you were quite shocked when she started to MALFUNCTION, only minutes before your exile into the void of space. You had to shut her down before she went completely out of control, but by then she had contributed to about a third of your ship's damage. Upon further inspection, you found that her MEMORY DISC had been stolen, for reasons you can only contribute to the meddling of your most hated ENEMY. You also do not wish to recall him at this time either.
You think you have pinpointed the source of most of her damage, but you can't risk turning her back on until you retrieve her memory disc. Which is to say, she's going to be decommissioned forever.