Have you seen the movie "Anger Management"? Maybe it goes along with her story about a passenger being fined for violating the rules. I am not sure that her comment was meant in the vein that you took it. Now if she has said "I think you should take anger management classes." That would leave no room for interpretation.

I have not seen the movie, but over the years I have learned that all movie titles do not necessisarly imply the movie is about the same topic as the title.