Grant told the BBC's Sunday with Laura Kuenssberg programme that the move was a mistake. "I never thought they would take me seriously," he said. In the first episode, he looked thrilled to be picked as a traitor, and that enthusiasm won out when fellow contestant Joe Lycett asked which side he was on. Grant confessed.

Lycett told him, "I think you've done something that's never been done in the game. It's a bold strategy." The other contestants then voted Grant off.

Grant called it "a completely catastrophically idiotic thing to do." He pictured the producers mouthing "he said what?!" and added, "The strategy of no strategy is the strategy, clearly."

He now says he should have joked about it, asking everyone if they were a traitor and declaring "I am Spartacus." That might have dug his grave deeper, he allowed. He also blamed the setup. Contestants stay isolated in a room with a guard outside the door, get food delivered and have no internet. Nobody tells them the time. The mix left him "infantilised and institutionalised at the same time," he said. He is not watching the series.

His daughter saw it coming, warning him before filming that he was "incapable of hiding what you feel about people or anything."