Scribbins, Jim Eastwood and Susan Ma squared up in the boardroom after their restaurant Caracas flopped. The trio only secured an average mark of four from industry experts, who marked them on brand identity, customer experience, food quality and long-term viability.
"Can one of you at least tell me what the business plan was? Where was the margins? How many did you expect to serve per hour?" blasted an angry Lord Sugar.
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Scribbins's background in hospitality was immediately brought up by her rivals, and Lord Sugar was unimpressed by her excuses for taking a backseat on the challenge.
"I did a degree in first aid, I didn't enjoy doing mouth-to-mouth resuscitation, but I have to do it when it's needed to be done," complained the multi-millionaire.
Sugar also compared the team's food at Caracas to his son's "dog's puke".
"Natasha, I can't reconcile some of the things that have happened today," he said.
"You started off like a house on fire but I have found you a little lacklustre in the last few weeks... you're fired!"
In the black cab home, Scribbins claimed that she was leaving the show with her "head held high".
"In this process, some of the characters will scream and shout and fight, and I'm not willing to lose my own dignity," she said.
Jim Eastwood, Susan Ma, Tom Pellereau and Helen Milligan will battle it out in the Apprentice final, airing on Sunday at 9pm on BBC One.
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