Saw a bit of this last night when I was down the gym. so no audio. Anyway, some dodgy geezers were doing a garden feature for a little old lady. It had lights and a water pump. These were all powered from what looked like unprotected T&E that was fed through a newly drilled hole in the house and attached by some means to a double socket.
At least it's not a permanent connection.
This cable then ran the length of the garden to the feature that they had constructed. All the electric connections and pumps etc. seemed to be wrapped in plastic bags, sealed with tape and buried a few cm's under the earth. Nice.
A testimony to the effectiveness of Part P.