Don't tell Mom the baby sitter is a psycho pervert: My favorite evil nanny/babysitter horror movies

Last night I watched the made-for-cable gem The Sitter (2007).  It wasn't particularly great but it wasn't particularly awful either, on a scale of one to ten I'd give it a 5.5 or 6.  The basic premise is - and there are no spoilers because if you've seen one movie like this you've seen them all - lonely psychotic young woman worms her way into a nice upper middle class family's house, psychologically manipulates the family members in an attempt to replace the wife, ends up murdering a bunch of people, ends up dying.  Personally I'd love to see one of these movies where the psycho ends up winning in the end.  But while watching The Sitter I remembered that for a brief period of time there were a rash of evil babysitter/nanny movies so I'd thought I'd try to highlight my favorites or ones that I have always wanted to see.

1. The best of the bunch is undeniably Curtis Hanson's The Hand That Rocks the Cradle (1992) with Rebecca De Mornay at the height of her hotness and crazy-ness.  Not just at the top of the evil nanny in our midst heap but also one of my favorite early 90s suspense/thrillers (a.k.a. rich white people in danger - if it's poor people it's a horror movie).
2. The Guardian (1990) dir William Friedkin.  I never got to see this movie which is a shame because I love William Friedkin movies (The Exorcist, Sorcerer, The French Connection, To Live and Die in LA).  Additionally this movie is unavailable on netflix, which is kind of a drag because now I really want to watch it.
3. Don't Tell Mom the Babysitter is Dead (1991) dir Stephen Herek.  I don't know how this hold up because I have seen it since the 90s.  I really enjoyed the movie but then again it might have just be my love for Christina Applegate.

Huh, this is turning out harder than I thought.  I know there are more evil babysitter movies than this.  I was going to include Poison Ivy but that's just a stranger in our midst movie.  Any of you fine folks remember any gems?