Of course, the irony is these same teachers will discipline students for trying to do this in their classrooms.
I get it. Most staff meetings and professional development sessions aren't interesting or even necessary.
The lesson for teachers: don't bore your students to death and waste their time talking about information they could read for themselves. Don't make them sit still and listen to you for an hour when you can't pay attention for five minutes. Empathy, people, empathy.
P.S. Professional development classes I might enjoy attending:
How Not to Feel Like a Criminal/Failure After Reading or Watching the News
How to Eat Mindfully and Slowly
How to Help Your Most Annoying Student Thrive
How to Respond to Degrading Emails from Parents
How to Lecture Like Your Hair's on Fire
How to Positively Handle Conflict with Students, Parents, and/or Colleagues
How to End the Year at the Same Weight You Started
How to Develop a Successful Side Hustle
How to Endure Boring Professional Development Meetings
How to Successfully Advocate for Your School and Students
How to Be an Extraordinary Fundraiser
How to Look Your Best for Your Staff Photo
How to Beg for School Supplies Successfully