Marcus threatened to punch Rex Newmark.
The Wolverine look-a-like housemate jokingly verbally sparred with his opponent ahead of today's 'electric shock' challenge from 'Big Brother' series nine.
As Rex was revealed as the housemate facing Marcus in the task, he made a quip about the tight gold suit he was wearing.
He said: "Hey. You finally got to wear your X-Man outfit!"
Marcus was, however, ready with his own comeback.
He said: "I told all my friends that if I saw you, I'd punch you - are you ready to take it?"
He laughed then added: "You know this is for our food and everything, yeah?"
Rex grinned back, saying: "You're gonna be hungry then."
The pair soon bonded, however, as they turned their attentions away from the actual task - guiding a wire loop over a stretch of electrified twisted copper without touching the sides and thus electrocuting the other housemates - and deciding to inflict some pain on the rest of the house.
Marcus said: "f**k it - just shock the b******s".
After being repeatedly shocked and starting to get annoyed, Noirin and Lisa, removed their shock pads, meaning the housemates may have failed the task.