No mechanism, flesh or otherwise, can avoid the perils of overwork.
Just because robots work for us, it doesn’t mean we can erase their memories whenever we like.
Human memory is a very convenient thing. We have a great capacity to forget. Our lives would be tough indeed if we had to hang onto every painful reminder. Thus, forgetting is something of a balm.
A robot and a human being. One of them had no enemies, and the other had nothing but.