As if TriMet didn't need any more security incidents, here is a jerk causing more unnecessary bedlam. From the Oregonian, Portland, OR, 6/9/17:
Man arrested after leaving backpack on MAX train, calling 911 to say it was suspicious, police say
A suspicious backpack found on a MAX train in Northeast Portland wasn't explosive, officials said Friday.
Portland police were called to the Hollywood Transit Center on Friday afternoon to investigate the backpack, which was found on a Green Line train, a police spokesman said.