There is a recent trend of hidden camera prank videos that are posted online as social experiments to elicit humour. Whereas this was previously the province of foreign TV productions such as the 'Just For Laughs Gags', local TV has also taken the cue. This has also spread to social media personalities who also have pranks posted on their handles.
Humour is a tool of social cohesion and human interaction though it is also a fluid social construct that is subjective rather than objective. This is why some people critique some pranks as being annoying whilst others find them hilarious.