An Air Canada flight from Casablanca to Montreal was canceled after a flight attendant had a meltdown over a passenger's request for a blanket, prompting an investigation and compensation for the affected passengers. This incident follows a trend of escalating tensions between crew and passengers on Air Canada flights, including another recent occurrence where passengers were removed for refusing to sit in vomit-stained seats. The airline is currently investigating the incident and has expressed regret over the poor customer experience.