Dwayne "The Rock" Johnson took some time off from shooting Fast 8, the latest installment in the successful Fast & Furious movie franchise, to let loose on some of his co-stars.

On an Instagram post on Monday, Johnson took shots at unnamed "male co-stars," who he called "candy asses." 

Some conduct themselves as stand up men and true professionals, while others don't... When you watch this movie next April and it seems like I'm not acting in some of these scenes and my blood is legit boiling—you're right. 

This is the first report of tension during the shooting of Fast 8. The film, which is directed by F. Gary Gray, features Johnson's character Luke Hobbs breaking out of "the most hard core maximum security prison in the world."

You can see Johnson's full Instagram message below.