DEAR MISS MANNERS: It is now possible to buy wearable recording technology, such as glasses with obvious, built-in video recorders. Some people, including this writer, consider such things to be intrusive, arrogant and rude by design.
The temptation is to grab them off the offending wearer's face and stomp on them, but one recognizes that this would not be courteous. Would a cold, "Kindly remove the surveillance device" do? One would very much appreciate Miss Manners' advice on properly rebuffing the use of this personal privacy nightmare technology.
GENTLE READER: Recording another person without express permission is rude, and the potential subject is well within his or her rights to say, "I request that we all please stop recording so that we can enjoy our time together."
Miss Manners intends for the listener to consider the possibility that the speaker will ensure that the time is not enjoyable, should recording continue. But she adds that any such action must be subtle enough to be deniable later.