How, you ask?
By wearing what appeared to be a gas mask and body armor, running to the post office, and trying to jam an oversized package down a mailbox.
Not surprisingly, someone called the authorities, and the post office was shut down for four hours while the area was combed by San Jose Police's bomb squad, the Fire Department's hazardous materials unit, and a team from the U.S. Postal Inspector's Office. They even brought in a robot to blow up the package that Hoang was seen stuffing into the mailbox.
Here's the story, as reported by the San Jose Mercury News:
About 12 weeks ago, Hoang became an avid follower of the CrossFit exercise regimen, which he said, exuberantly, combines "this really creative combination of weight lifting, gymnastics and rowing." He wears the mask to simulate high-altitude training. Hoang, who is 5 feet 4 inches, said he's lost at least 20 pounds, and is now 142 pounds.
Many neighbors in the area frequently spot him running in his gear, doing squats and lunges at corners while he waits for the light to turn green.
As Hoang tells the story, he mistakenly received a package of calendars at his home, and thought he'd mail them back to the proper recipient while on an exercise run. The package didn't fit the first time in the mail box, he said, so he had to fold it up and try a second time.