Totally agree. I refuse to talk to anyone with one of those on. It's not only creepy but also really unfair. It also throws the whole concern of private conversations out the door. Get rid of the camera but keep the glass. Maybe then we will be more comfortable.
Weirdly, when I was in 7th or 8th grade I thought it would be a neat idea to put an audio tape recorder (the cassette type, remember those?) in my bookbag and record the audio of my entire day at school. I have no idea why I thought this was a neat idea. I don't believe I still have this tape, and if I recall the audio wasn't very clear.