"I would be concerned too as a parent if a teacher's aid did that" How is that concerning? If she'd posted a picture of herself executing kittens, or planning a series of gruesome murders, yes, sure, that's concerning. But a pictures of pants and ankles? How is that something to be concerned about? Or are you saying that you don't think that's anything to worry about, but you only want your children to be near adults who spend their lives in some kind of insane fearful paranoia? If that IS what you want, what's wrong with YOU? What kind of people would your children turn into if every adult they ever met was a terrified paranoic?