I think that, too, is a UX problem.
If you present the output as you do, as simple text on a screen, the average user will read it with the voice of an infallible Star Trek computer and be irritated by every mistake.
But if you present the same thing as a bunch of cartoon characters talking to each other, users might not only be fine with "egg in your face moments", as you put it, they will laugh about them.
The key is to move the user away from the idealistic mental model of what a computer is and does.