The Celebrity Big Brother 2016 housemates woke up to find the house transformed today.
To quote Frankie Grande, it was "just like Hogwarts" as the group found themselves in Big Brother's Big School.
Big Brother introduced himself as their headmaster and said: "Big Brother is going to teach you all a lesson and send you back to school where you'll be expected to follow the rules."
Big Brother explained that throughout the day would be various challenges and those that complete them would be rewarded while failures and rule breaks would mean detention.
Aubrey O'Day and Ricky Norwood were made head girl and boy respectively and had 30 minutes to create some rules:
1) No disruptive behaviour
2) Clean up after yourself
3) Listen when others speak
4) Take time to get to know the person you know the least
5) Ban on 'BOOM!'-ing
The last rule proved too much of a temptation for Bear and Heavy D who were sent to stand in the corner almost instantly
The tasks then got under way including an art lesson where housemates each had to paint a picture.
But it was life art as they walked out to the garden to find two naked models with some carefully placed fruit and veg posing for them.
The task highlights will air in Monday night's show on Channel 5.