Earlier quoted context omitted.
Anyone recording me with a camera in their hat or on their lapel or a microphone embedded in their clothes would be treated in roughly the same manner as someone recording me using Glass. Just because the act of wearing the recording device is in plain-sight doesn't make it anymore acceptable to people who find it objectionable.
With a truly hidden camera, you would never know. So you're freaking out over someone who might be able to record you, ignoring the fact that everyone could be recording you without you knowing it.
I get that I might never know if or when I'm being monitored by some device, but that in no way justifies explicitly recording someone without their permission.