Actor Rob Lowe set up boxing matches with Tom Cruise and Emilio Estevez in the hallway outside their hotel rooms while the trio was making 1983's The Outsiders - so they could let off steam after tense days on set.
Lowe reveals he'd pick fights with his pals and turn up on set with fresh bruises and cuts - but there was one co-star they'd never invite to join in the rough play.
He says, "It was pretty much Emilio (Estevez), me, Tom (Cruise)... You didn't wanna mess with (Patrick) Swayze; he was too gnarly.
"Tom and I really fought a lot; he was one of those guys that was OK until you really hit him hard. If you got in a hard shot at Tom you were likely to get killed."
And Lowe insists that despite stories suggesting the young stars were rivals on the set and remained so throughout their careers, he couldn't be closer to his Outsider castmates.
He adds, "That was my college... They were my frat buddies. I have that bond with all those guys to this day."