It’s okay to be a hater, just don’t be cruel.

That’s the message actor John Gallagher Jr. had for one person on Twitter on Sunday night.

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Following the “Westworld” season 3 premiere, a user tweeted his thoughts on the episode, then made a dig at Gallagher, tagging him and calling him “insufferable.”

Gallagher responded to the tweet, calling it “incredibly rude and graceless” to tag him while trashing him.

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The Twitter user has so far not responded.