The atmosphere became heated at the latest press conference to promote Luke Campbell's pro debut in Hull's City Hall.
Derry Mathews and local boy Tommy Coyle clashed in a war of words three weeks ahead of their fight for the vacant Commonwealth lightweight title on a packed undercard at MS3 Craven Park on July 13.
In a spat that was more personal than just a show for the media and public present, the pair stepped up the rhetoric ahead of what has become one of the big talking points ahead of the big outdoor show.
Mathews will go into the fight as a hot favourite with the bookmakers having operated at a higher level than his opponent for many years.
But Coyle (15-1), whose only defeat came to Gary Sykes in last year's Prizefighter tournament that also featured Mathews, is confident he can upset the odds after enlisting the help of Sky Sports pundit Jamie Moore as his trainer.
"There's a lot of hatred flying around today and although I respect him as a fighter, I don't respect him as a geezer to be honest," Coyle told Sky Sports after the debate, that continued to rage in Queen Victoria Square outside City Hall, had finally died down.
"Jamie's teaching me all kinds of things that the old pros do, and things that Jamie's done and things that we feel will beat Derry Mathews.
"It's a winnable fight because Derry is very vulnerable and I'm going to prove that on July 13."
However Mathews, who drew with Anthony Crolla for the same belt in Liverpool in March, believes he will be far superior on the night.
"He's in a dream world. He's got nothing to beat me, he's never been in a hard fight, a tough fight," he told Sky Sports. "Trust me he's in deep, deep water and he's going to wish that he'd never boxed me.
"I just keep saying to him 'make sure you make the weight'. I know I've got everything I need to beat him. I'm big and strong for the weight and I know I can hurt him - but can he hurt me?"
Moore and Mathews' promoter Dave Coldwell were also involved in the verbal sparring and the former believes his intimate knowledge of Mathews could be the key to the fight.
The former British and European champion is good friends with both Coldwell and Mathews and although it puts the first-time coach in a difficult position, he insists it won't stop him from ensuring Coyle comes out on top on the night.
"I know Derry inside out and he's very aware of his vulnerabilities and he protects them very well," he said. "He's aware of it but so am I, and my job as a trainer is to work out a gameplan to exploit him.
"He's come on a hell of a lot and as much as I like Derry I think Tommy has got all the moves to beat him. I really do believe he can go a long way."
The clash will provide support on a night that will see Olympic champion Campbell make his professional debut in a six-round contest against an opponent to be revealed in the next week.
Kell Brook's rematch with Carson Jones is the co-feature while there are also appearances from British and Commonwealth featherweight champion Lee Selby and English super-middleweight boss Rocky Fielding.