Yes, several times, Both a result of deception and poor thinking on my part.
In my college days i made a bad decision and did a porn shoot. The producers of that produced a signed contract that it would not be distributed in North America covering the USA and Canada. They kept their word but i got identified by a group of sailors in a club in San Diego just over a year after making it. They all had watched the entire video several times while docked in a German port. Little hippie chick pulls a nine guy train.
That night i repeated my exploits with seven sailors at a hotel in San Diego.
The other three times a result of error or deception. Un-Real People developed some of our film and contacted me for ok to publish in the next issue. I had run several adds before and they promised to distort the faces because none of us had signed any releases. They didn't and that lead to three occasions where i was ask about those photos.
None of the occasions lead to any real problems, no blackmail or bad talk. One lead to a nice party with the sailors, one to a night with my guy and two men. The other two a lot of questions and several free drinks. I think i was lucky that none of those that was you events lead to any real problems. I've known of others who were not as fortunate.