Brock Lesnar terrified Skylar Astin's brother at UFC 184

Brock Lesnar is a terrifying human being.

Actor Skylar Austin and his brother, Milan, learned that first hand at UFC 184, when Milan - sitting with Team Alpha Male's T.J. Dillashaw and Urijah Faber - urged Lesnar to spurn the WWE and return to the UFC.

"We're cageside at the Ronda Rousey, Cat Zingano fight, and basically Brock Lesnar was the guest of honor," Skylar Astin told Brendan Schaub and Bryan Callen on the latest "Fighter and the Kid" podcast, according to Fox Sports' Elias Cepeda.

"That was in that interesting time where you did not know what Brock was going to do. We're sitting with TJ and Urijah and feeling pretty cool about ourselves, that we have these all-access passes, and going backstage and the whole b.s. that people want to kill me for talking about, right now ... Essentially, my brother leans over to Brock Lesnar ... and just goes, 'Dude! You gotta come back, man! You gotta come back, dude!'

"And Brock just goes, 'Sit the fuck down! You don't know shit! What the fuck?' Blood red, mad ... Urijah and TJ are kind of frozen, my brother's poor girlfriend is in between, just crying."

Lesnar ultimately opted to stay within the pre-determined world of professional wrestling, signing a lucrative multi-year deal with the WWE. In hindsight, it was the right move for Lesnar, who is making gobs of money while working a reduced schedule.

"It was kind of funny, but also scary because I'm watching a three-piece suit Brock Lesnar stare back at my brother every once in awhile, and I'm, like, trying to diffuse it just being, like, I think that either he's a psycho and/or he's in WWE mode where he's playing a heel and is like, just fucking with the fans," Astin said.

"It's a deep-seated thing for him. It means a lot to come back and I think he was just tired of everyone saying, 'come back, man.' I think it was just like, 'You don't know what I have to do to do this.'"