She really is evil. I can't understand someone that would do something like that; sounds like she's attempting to brainwash your S. Two thoughts: you need to stay away from going into your X's house! That would have prevented that wouldn't it? Try to encourage your kids to be ready on time, and then when they aren't, wait outside. Stay away from the toxic they spew. My other thought is if you see that kind of thing again, for example her handwriting practice with OM's name, ( ) then I would keep it for legal purposes.