In Borat and related works, pranks tend to follow the following course.
An impersonator will pretend to be a bigoted (e.g. racist, sexist, or anti-Semitic) character.
The impersonator will then contrive (perhaps using peer pressure or other social psychology methods) a situation where some unsuspecting people will behave in bigoted ways.
The unsuspecting people are filmed and their apparently bigoted behavior is shown to viewers, generating laughs.
Question: is it ethical to subject the unsuspecting people to such pranks?
It rings similar to the ethics of human-subject research and also to ethics of various law enforcement entrapment/sting schemes.