This is proving to be a surefire way to get your butt kicked.

An employee at a Domino’s pizzeria in Texas attacked a co-worker for dishing an “Avengers: Endgame” spoiler over the weekend, according to a report.

Police were called to the Friendswood restaurant early Sunday for a report of an assault, ABC13 reported.

Justin Surface, 33, was slapped with a citation for assault by contact after cops say he went after his co-worker for revealing what happens in Marvel’s blockbuster superhero flick, which was released in the US on Friday, the news outlet reported.

“That’s hilarious,” one Domino’s customer told ABC13 in commenting on the reason for the attack. “That just seems kind [of] insane to me.”

Staffers at the Domino’s refused to comment on the matter to ABC13.

Last week, a man was beaten outside a Hong Kong cinema after he shouted out spoilers to Avengers fans waiting in line to see the hotly anticipated movie.

In an online open letter, the film’s directors, brothers Anthony and Joseph Russo, pleaded with fans to not share major plot points with others who haven’t yet seen the flick.

“Because so many of you have invested your time, your hearts, and your souls into these stories, we’re once again asking for your help,” the filmmakers wrote in the days before the movie’s release.

“When you see Endgame in the coming weeks, please don’t spoil it for others, the same way you wouldn’t want it spoiled for you.”