If you ever spot Anthony Mackie and Frank Grillo on a red carpet together, a word to the wise: just get out of the way and let them do what they're going to go.

The "Captain America: The Winter Soldier" co-stars were a force of mic-dropping chaos to be reckoned with at Comic-Con over the weekend, working the press line for the forthcoming Marvel sequel with enough unbridled energy to leave even the most seasoned of red-carpet reporters slack-jawed.

"When Captain America was whooping your ass, how did that feel?" Mackie asked Grillo, referencing the footage that was screened at the film's Hall H panel.

"Captain America was not whooping my ass! I don't know if you saw the reel, but..."

"Oh, I did. It was funny because it was twelve of y'all and one Captain America, and he said..."

"No, I fell down. I tripped."

"And you hit your head?"

"I hit my head, and then he hit me with that shield."

"Oh, ok."

"He's got a shield. I don't know, have you ever seen that thing?"

"Yeah, yeah, yeah. But I saw you had two tasers, and he punched you."

"One of the tasers wasn't working."

"So why were you carrying it?"

"It wasn't my taser, I picked it up from the ground. You didn't watch the..."

"Are you scared of Captain America?"

"A little bit."

"Oh ok, alright." 

And so on.

To watch the full exchange, click on the video above.

"Captain America: The Winter Soldier" hits theaters on April 4, 2014.