I’m convinced of this now more than ever:

Three contestants have spoken of their disbelief after being fooled into thinking they went into space for the UK reality show Space Cadets.

The three believed they had blasted off from a cosmonaut training camp in Russia, but were in fact in a fake spaceship in a warehouse in Suffolk.

They cheered up when told they had each won £25,000 ($44,300).

But one contestant, teaching assistant Keri Hasset from Birmingham, said she was "heartbroken" by the prank.

Ms Hasset, plasterer Paul French, 26 from Bristol, and footballer/recruitment consultant Billy Jackson, 25, from Kent, had suspicions they were being tricked when they had to hold a ceremony for a celebrity Russian dog called Mr Bimby on the spaceship.

"This is a spacecraft but it feels like a caravan," Paul told his fellow astronauts.

"And if we were going to space and they were weighing us for our health, they wouldn’t use scales like you get at home, would they?"

No, Sherlock.  They wouldn’t.

The fact that there was gravity might have tipped you off, too.