Common sense people.... Don't trust men with video cameras. If we say we're not recording, then why is it in the room to begin with and why does it have that red light on?
She agreed to have them projected on the wall? Sure... but if you have a worry about the camera being used by your partner to record, then make sure it is you who operate the camera. If you feel your partner might record you, chances are, he will.
Or she.