Rainn Wilson threatened to 'dump' on a US Airways windshield yesterday after his plane took off 10 minutes early on a flight headed towards Scranton, Pennsylvania, leaving him and six other The Office cast members stuck in Philadelphia during a layover on their way to a day-long cast party in the Pennsylvania city where the show is set.

The Office cast members, including John Kraskinski, were scheduled to fly from Los Angeles to Scranton to celebrate the series finale of the popular NBC comedy, which is scheduled for May 16.

Rainn's beef with the airlines started innocuously after he and the other cast members missed their connecting flight after coming in from Los Angeles. He tweeted out yesterday:

"So @USAirways just screwed me & half the cast of The Office. Conctng flight left BEFORE departure time. Sorry Scranton won't see u til tom."

But things escalated, and so did Wilson's tweets after the actor--who plays the squirrely and ambitious Dwight Schrute on the show--learned there wasn't another flight for hours and the decision was made to rent cars and drive the 130 miles from Philadelphia to Scranton.

He tweeted, "We're being forced to rent cars and drive to Scranton from Philly. Does the CEO of @USAirways want to join us? I will fondle him angrily," before adding, "The plane was a 20 seater, missing 7 people who had obviously just landed & it leaves 10 minutes EARLY!@USAirways."

Then came the ominous and foul-smelling defecation threat when Wilson tweeted:

"I'm going to take a dump on a @USAirways plane's windshield. In the shape of the @Delta logo."

I'm going to take a dump on a @usairways plane's windshield. In the shape of the @delta logo.

— RainnWilson (@rainnwilson) May 3, 2013

If that wasn't all, the 47-year-old actor and comedian even tweeted out a pic of his conversation with the US Airways staff:

Later, he sent his Twitter thanks to Scranton after settling down for some food in the small town:

"Had an AMZING dinner in Allentown.  The Bay Leaf was awesome.  Thanks."

For their part, US Airway executives later apologized about the screw-up, but we've all got an image of Rainn Wilson defecating on the windshield of a regional US Airways plane in the logo of their competitor, Delta, now.

The Office cast, including the mayor and a live band was scheduled for a parade today at 2:00 pm. We're guessing the US Airways staff was not invited.