1
                           general:: 
                            Phrase(s): raise havoc with someone or something [and] play havoc with someone or something 
to create confusion or disruption for or among someone or something.  •  Your announcement raised havoc with the students.  •  I didn’t mean to play havoc with them.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs