Air Canada baggage handlers staged a wildcat walkout at Toronto's Pearson International Airport, grounding several flights.
Passengers who had boarded at least one flight bound for Ottawa Thursday evening were told deplane and return to the terminal.  There's been no official comment from Air Canada and about 150 workers are involved in the walkout.  
Meantime angry Air Canada workers rallied outside of Prime Minister Stephen Harper's Calgary constituency office Thursday. 
A union rep says the federal government ignores the collective bargaining process, and they want that to stop. Ottawa recently passed legislation banning strikes or lockouts at Air Canada, arguing the move was needed to protect the national economy.