Last year ADT, a company selling home security systems, launched a "brilliant" marketing campaign in Santiago, Chile. Spring loaded boxes were folded and slipped under doors then, inside the home, these boxes would spring into shape, appearing as though they had been left behind by someone inside the house. On the front of the box was the statement "Breaking into your apartment is easier than you think" next to the ADT logo.
This was obviously pretty risky, but was it effective? Most home security companies tend to take the same road- advertising like life insurance companies and just trying to be somber enough to get attention. But consumers who don't think they are at risk are pretty likely to just tune out the message. This way at least, there was no getting around the ad, since it was sitting pretty glaringly behind the consumers' front door.
But is it a breach of privacy? Could it have made consumers feel threatened for more than the obvious reason- that they were at risk of burglary? While I do think that this campaign was ingeniously creative, I'd like to make a note that this probably scared a lot of people. If it were me, I'd be frightened at the thought of a company entering my private sphere, although I know they do it in much less obtrusive ways. There's a lack of thought about subtlety here.