article_snippet.sent: Manchester's city centre chief councillor Pat Karney (pictured) has said a new craze must be stopped 'before we have a tragedy on we hands' '
article_snippet.sent: A senior council boss in Manchester has issued a stark warning about the craze.
article_snippet.sent: It has to stop before we have a terrible tragedy on we hands.
highlights_snippet.sent: Councillor says craze must be stopped before 'we have a terrible tragedy' 