Say what you like about famous people, but they know how to keep schtum. To date, none of the contestants on The Celebrity Traitors have divulged show secrets, or let slip spoilers. And thank God for that, because it allows us, the humble viewer, to keep tuning in each week with bated breath and no idea what will happen next.

But as for everyone else? Not so much. These days, any programme with a format involving voting people off tends to be ruined by those in the studio audience. Every single TV audience, it seems, is made up of the kind of people the police would love to get to know better: grasses. They couldn’t keep a secret if their life depended on it.

It has practically become a weekly ritual that someone within Strictly ’s Saturday evening crowd will post on social media

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