Sometimes I am boiling a stew, and while I am preparing another dish on the side, for some unknown reason I put the raw eggs on the stew instead of the fry pan.

Pans have been there for centuries, and there is nothing preventing me from throwing stuff in the wrong place, nor undo the eggs in the stew. It's so intolerable, and I feel so ashamed and guilty on behalf of all the pan makers.

Not. We are in a field where we can prevent a lot more stuff to happen than in the real world (and the real world is soooo broken...). We should try our best to make the state of usability and fool-proofness advance as much as we can, and surely there must already be something that would help your wife's case. But we should also be more realistic when voicing expectations.