Big Brother came hard on big-headed housemates, with Wati and Nafe being punished for smoking in the toilet.

The Malawian pair was punished alongside South Africa’s Keagan and Lee as well as Botswana’s Edith and Kenya’s Alex for flouting laws that require housemates to smoke outside the house.

On the other hand, Angola’s Seydou and his Zambian lady love Talia were punished for their habit of switching off their microphones late at night while enjoying their chat.

“The punishment given to all these eight housemates is to be tied up together with a string for 36 hours, standing straight. They will only be free when they are visiting the bathrooms,” reads the entry on the series’ online window (www.bigbrotherafrica.com).

Two nights ago, they were supposed to sleep while standing upright.

The punishment comes a day after the Malawian couple survived nominations for the fourth week on a trot.