The school where I work had one teacher who decided to stick a label with her user name and password to her desk where all the kids can see it.
Another teacher gave out her username and password to a parent helper. It was lucky that the parent helper was a nice person and not a totally stickybeak. If the parent had chosen she could have potentially read other children's IEPs or other confidental documents.
To be a teacher you need a degree and many teachers have higher qualifications. So how can people are who are so bright lack so much sense.