Was at Tesco in Borehamwood today, which as anyone who's local will know; is metres from the house itself. I've been to BB evictions and the perimeter of the garden is accessible from about 3 meters away to absolutely anyone who walks to the back of the car park.
At the back entrance to Elstree Studios, about 5 metres from the BB garden there was a rather big delivery lorry, backed in to the gates. And before you ask, no, it wasn't a Tesco lorry.
Suspicious much?

I wreckon it's furniture or some other supplies