An angry Jim Harbaugh is intimidating. An angry Jim Harbaugh who rips his jacket off because he's steaming with passion? Try terrifying.
The Michigan coach got so heated over a pass interference penalty that he ripped his jacket off mid-sideline fit.
The call went against Wolverines safety Jabrill Peppers, who exchanged some shoves with a Penn State wide receiver.
[Vine, Twitter, h/t SB Nation]
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