Yesterday I was doing some shopping in Paris when I came across the following advertising sign:

(sorry for the very low quality of the picture; it has been taken with my cellphone as I didn't think I'll encounter such a "thing" to photograph ! I'll take one with a real digital camera ASAP...)

As you can see (circled in red), the owner of the shop (or his electrician or ...) removed the insulation layer from the mains cable coming out from the wall and from the two bare wires coming out from the electric sign, twisted the cables two by two, and isolated his ugly twisting with scotch tape...

No need to say that it is a very dangerous installation and that it is against the most basic safety rules !