Mums, if you find an usual number of men's numbers in your helper's diary, is this something you would worry about? How would you investigate? Or would you just question her?

If your helper showed you their diary, they probably wants some help to better organise these numbers: show them how to use their phone contact app to store the contacts (with back up online) without risk of losing them; if your helper did not show you their diary, wonder about the implication for the respect of privacy value you are demonstrating.