You shouldn't verbally abuse people.
Evan is frustrated at his coworker Abby for not understanding how to operate equipment properly.
Evan wants to teach Abby.
Evan shows Abby some tutorial videos before asking her to shadow him for the rest of the day.
Evan puts Abby down and treats her like a child as he explains the controls.
Abby's work performance improves.
Abby starts crying.