How to control anxiety? Content or Delivery? What matters more to your audience? What Causes "Presenter Mode"?

Dropping University Courses Students doing poorly in courses often consider dropping the courses. Many universities will offer a refund before a certain date. Should this affect a students drop decision?

Goal Alignment between Airlines and Flight Crews Planes frequently push back from the gate on time, but then wait 2 feet away from the gate until it is time to queue up for take-off. This increases fuel consumption, and increases the time that passengers must sit in a cramped plane awaiting take-off. Why does this happen?