As the majority of the group decided to order lots of cooking ingredients for the house, the Irish student headed into the kitchen to oversee proceedings - and quickly became irate at the lack of cigarettes and alcohol on the list.
Clocking how much tobacco had been ordered, she protested: "Excuse me? We have an addiction," as Corin argued that the group had been "nice" enough to allow them to buy some from the budget.
Next, she turned her attentions to alcohol, blasting: "Do you know what? We have a once in a lifetime opportunity and we're spending it on carrots and potatoes? What about alcohol?"
Storming out of the kitchen she carried on complaining. "Carrots and onions and garlic for fuck's sake," she said, adding sarcastically: "Great work guys, I just wanted to say."
Later on, she told John James and Josie: "I'd put alcohol first, cigarettes second and cereal fourth." However, Josie appeared to be losing patience with her complaints.
"You're just a pair of moaners," she told them. "I could have got you a diamond ring each and it still wouldn't have been good enough."
When Caoimhe left the room, she slammed: "She can do one. I'm not having that. Self-centred cow."
"Are you being serious? I think she's only mucking around, Jose," said John James. "I'm serious," she replied.