Chris Evans' not-quite-heartfelt birthday wish to Chris Pratt has met with a response a response from the Avengers: Infinity War co-star ... and possibly his attorney.

On Thursday, Evans wished Pratt a happy 39th birthday with a photo of a dog peeing on a fire hydrant decorated to look like Star-Lord from Guardians of the Galaxy. Happy birthday [Chris Pratt] from me and this giver of zero f*cks,"he wrote. "We hope you’re getting showered with affection today.

RELATED: Chris Pratt Confirms Guardians of the Galaxy Vol. 3 Will Film in January

Although Pratt is no doubt preoccupied with the opening this weekend of his blockbuster Jurassic World: Fallen Kingdom, he nevertheless took time to acknowledge the message: "You'll be hearing from my lawyer."

Perhaps the two will be able to arrive at a settlement out of court during reshoots of Avengers 4, expected to wrap by Sept. 1

In theaters now, Avengers: Infinity War is directed by Joe and Anthony Russo and stars Robert Downey Jr, Chris Evans, Scarlett Johansson, Chris Hemsworth, Mark Ruffalo, Elizabeth Olsen, Paul Bettany, Chadwick Boseman, Tom Holland, Benedict Cumberbatch, Sebastian Stan, Don Cheadle, Anthony Mackie, Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel, Bradley Cooper, Pom Klementieff, Tom Hiddleston, and Josh Brolin.

KEEP READING: Chris Pratt Teases Guardians 3 Could Be a Prequel, But James Gunn Says No