As anyone on the front lines of the service industry can attest, an unfortunate reality of the job is that a significant number of customers will angrily berate you and there isn't much you can do to prevent it.
But while it seems this has always been true, enough people have either experienced this kind of abuse or heard enough horror stories about it to start treating it as a warning sign in potential romantic partners. And while it's still not exactly impossible for customers to rant at staff without consequence, the fact that just about everyone has a camera on them makes this a riskier proposition.
And as one man recently learned, the internet can be eerily efficient when enough people are horrified by what you do.
Be advised that the full video contains strong language.