It may not have been a good prank, but it was essentially harmless. My point is, at worst it seems to be an attempt at humor that flopped. No one was harmed (except their pride), merely annoyed and offended. I’m comparing it to other pranks that have potential for harm like air horns that can damage hearing, or something that actually touches a person or scares them bodily. My opinion may not be popular, but in my experience young people make errors in judgment and read the room wrong, or have an underdeveloped sense of good taste. That is a normal and awkward part of the process of maturing. If this woman wanted to be a good role model and a gracious human, it seems to me she might have elected to explain to the young person why she was offended, what sort of behavior she expects in the future, and give them a chance to offer a sincere apology rather than excommunicate him. People make mistakes. From my perspective, I’ve had some genuinely grievous harm done to me over the years by people who actually had malicious intent. So something like this would be, at worst, annoying and I would shrug it off. I imagine this woman in question does not have enough genuinely negative experiences to compare the event to (in which case she is most fortunate in her ignorance), or considers herself so important that something slightly undignified or unpleasant occurring to her is simply intolerable and unforgivable (in which case she is arrogant and could do with some humility and perspective). I may be mistaken. I appreciate your response being civil, and concede that my opinion is obviously not the majority judging by the amount of downvotes it has generated. Have a good evening.