The Chase's Mark Labbett is known for his biting one-liners, and this evening's quiz-a-thon was no exception.The Beast accused presenter Bradley Walsh of "clutching at straws" when he desperately attempted to defend one contestant's answers.In a savage swipe, Mark silenced the witty presenter as he leapt to a player's defence in the second round.Pat appeared on the show, hoping to earn enough dosh for some fancy boating equipment for her fishmonger hubby.After a nervy cash builder round, the Devonshire player managed to rack up £3,000 as she accepted Mark's middle offer.However, one question threw her completely, as Brad quizzed the duo about the wild animals native to the US.He asked: "What is the heaviest land animal in North.
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