To win back some of the depleted prize fund, the housemates were given a Task to answer questions on the jaw-dropping clips they were shown a short while ago of them nominating each other over the weeks.
They all took their place at six school desks in the Living Room, with David reading out the instructions to the group.
Ten questions were to be answered by raising paddles bearing housemates' names. For each correct paddle raised, housemates would win £100 towards the winner's prize fund, meaning that a maximum of £6000 could be clawed back.
Most of the questions were greeted with laughter and Charlie exclaimed that "this is fun", but some of the questions threatened to reopen old wounds.
"Who nominated David for being attention seeking, ‘too loud and in your face', and for poking his nose in because ‘he fancies Rodrigo'?" asked Big Brother.
Once the correct answer of Sophie was revealed, David wailed "how could you say such a thing?"
"Jeez, we all have to nominate!" replied Sophie, before deploying a fragile giggle to lighten the tone.
Other questions included, ‘Who claimed Siavash has the ‘biggest game plan in here'?, ‘Who did Rodrigo nominate for stealing his chair and a plate of sweets?' and ‘Which current housemate has received the most nominations from his or her current housemates?'.
In the end, the housemates got 53 out of the 60 questions right, so added £5,300 to the winner's prize fund, bringing the fund total to £21,320 (excluding the 10k for Siavash wearing the outfit for the week).