It's like a minefield in this House. Ever noticed how something so small can suddenly become so... explosive?

Nicky, Gerry and Chanelle were taking a rest in the bathroom between strokes in the swimming task, when Gerry joked that Chanelle's seven lengths in the pool might be because she was unfit. Oh dear.

"I can't believe you called me unfit!" said Chanelle aghast. "I go to the gym, I go on the treadmill, I do weights!"

"Oooh," teased Gerry.

"You've been really mean to me today," said Chanelle, only half-joking.

"Women are so sensitive!" shrugged Gerry.

"And he said I was fat the other day," smiled Nicky, winding him up.

"No I didn't," he said. "Have you seen my stomach? That's why I became gay," he said turning to Billi who was on the other sofa. "Because of women!"

"I can't believe you said I'm unfit," said Chanelle again, looking really put out.

"Ooh that's sooo horrible," he mocked. "Anyway you're not unfit. You just can't swim."

As Chanelle looked more upset he turned to the others. "I didn't really mean you were unfit. I just meant you can do more than seven."

"You didn't have to call me fat," said Nicky.

"One woman at a time. I'm sorry if I called you unfit. And I never called you fat."

"You turned gay?" said Billi.

"With this I'm turning more gay!"

Nicky giggled. But Chanelle wasn't leaving it... watch out Gerry, she's about to blow.