@MarqFJA87 I think Ponko was useless before that. The end of page 15 in the flashback at the hospital has someone dropping something, apologizing, then some loud sfx. His wife says "Oh, that must be that cheerful little nurse." Then on page 16 you see a nurse that looks
exactly like Ponko going into his wife's room with another nurse. That's probably where his wife met Ponko, and it sure looks like she was already clumsy/useless at that point.
It could still be an accident in a previous memory wipe, but if so it was before the most recent one.
@Betony She should, since she's apparently an Asimovian robot using the
Three Laws of Robotics. (She mentioned the first law in the first chapter.) The third of those is "A robot must protect its own existence as long as such protection does not conflict with the First or Second Law." First law is about not injuring humans, second is about following orders. That means she's programmed for self preservation as long as doing so won't disobey an order or harm a human.