Taylor Swift visibly wasn't impressed with the immeasurably more vocally talented and mature Adele at the Golden Globes, but karma came back to get her.

Michael J. Fox, like the Hollywood Foreign Press Association, wasn't impressed with Swift, either.

After Tina Fey and Amy Poehler issued warnings to Swift to stay away from Fox's teenage son, Sam, we didn't get to see the Taylor's reaction, but now we have Fox's response.

Does he want Sam to take on Swift?

"No. No ... just back off," he told Vulture. Smart!

"I don’t keep up with it all," he explained, "But Taylor Swift writes songs about everybody she goes out with, right? What a way to build a career."

How about some aloe for that burn?

As for what he'd do if Swift came over for a meet the parents dinner, Fox was equally blunt.

"I wouldn’t even know who she was," he said, but admitted he'd likely figure it out once the song came out on the radio after Sam shattered her innocent, fault-free heart. "Yeah, exactly," he said. "'Sam, You Piece of S---,'" he laughed. "Oh … that was the girl you brought home!"

Be careful, Fox. You saw what happened to Kanye West. We don't need to see this girl barefoot and melodramatic on a VMA stage ever again. Like, ever.

Watch Tina Fey + Amy Poehler Warn Taylor Swift Against Dating Michael J. Fox's Son