A man was crushed to death when he dove under a slow-moving semi-trailer to retrieve his baseball cap.
High winds had blown the hat off the man's head as he got out of his white convertible in the parking lot of a farm supply store on Tuesday.
The wind carried the well-worn hat underneath a loaded semi-trailer just as it started to move.
"The truck was rolling forward and he dove under to grab the hat. He tried to grab it and wiggle out quickly," said witness Josh Emard.
Emard said he wondered at first if what he was seeing might be a stunt.
"It was just unbelievable that someone would go under a moving semi for a hat."
Derek Keenan, 44, of Lethbridge, died at the scene after the truck's rear wheels rolled over his upper body. The truck came to a stop with Keenan underneath the flatbed trailer loaded with precast concrete drainage pipe.
The 40-year-old truck driver, looking visibly shaken, was helped into an ambulance and taken to hospital.
Lethbridge police Sgt. Tom Ascroft said no charges will be laid.
"A very odd set of circumstances led to a very tragic accident," he said.
