Lou Diamond Phillips recently pranked one of his costars on Longmire.

Phillips, who plays Henry Standing Bear on Longmire, tweeted Wednesday about doing something to costar Adam Bartley (who plays The Ferg) that may have gone horribly wrong!

"Word of advice: Don't goose a guy when he's running on the treadmill. Near disaster!" Phillips tweeted. "But, gotta say, @Adam_Bartley expression was priceless!"

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The tweet was retweeted and favorited multiple times and received a whole multitude of comments.

"Is he still speaking to you? Where do we send the get well cards?" one follower wrote.

"You're a baaaaad kid, LDP! (Hysterical, but bad)" another wrote.

Another asked for proof of the incident: "video or it didn't happen".

Based on their social media interactions, it looks like the cast of Longmire is one of the closest on television. They often display their affection for each other on Twitter and Instagram through photos and well wishes, giving diehard fans some positive vibes about the show.

Longmire fans have been through the wringer considering it was canceled last August by A&E after three seasons. Netflix swooped in back in November and picked the show up for a 10-episode fourth season, which is currently nearing the end of production.

Longmire season 4 is scheduled for release on Netflix in the fall, though the streaming site has not yet announced a specific premiere date. All 10 episodes are expected to be announced at once.