Morticia, for future reference, there is a place in settings where you can type in people you never want to find you - as in, they seach for Morticia Addams, and they will only find the Morticia Addamses who are not you.
Ask me how I know
Anyway, it saves you the grief of repeatedly ignoring that
stalker person who thinks the two of you were so much better friends than you actually were.
FWIW, I also have friends who are hidden - but remember, when you hide someone, they are only hidden in your news/live feed. They can still see everything you do/say (per your settings) unless they hide you. And they can write on your wall. I find myself hiding friends who don't realize (or whose friends don't realize) I can't have certain vocabulary show up on my screen when I don't expect it....