It's rude to dismiss the teaching profession.
John meets Peter at a charity fundraiser and Peter tells John that he is a high school teacher.
John wants to respond to Peter's statement.
John tells Peter that he's doing a thankless job that benefits society greatly and that teachers don't get enough credit.
John scoffs at Peter and tells him that school is an evil place that instills bad liberal ideas into children's heads.
Peter is delighted that John is so understanding of what he does every single day.
Peter is sad that John is being disrespectful towards his Job and is shocked at John's narrow mind.