Mischief Night is called 'Gate Night ' in Vancouver Island .
It is known as `` Gate Night '' in New Hampshire , West Kootenay ( British Columbia ) , Vancouver Island , Winnipeg , Thunder Bay ( Ontario ) , Bay City ( Michigan ) , Rockland County ( New York ) , North Dakota and South Dakota ; as `` Mat Night '' in Quebec ; and as `` Devil 's Night '' in many places throughout Canada , Michigan , and western Pennsylvania.
Mischief Night