The Noble Art of Borrowing Electricity

My landlord is currently renovating some of its buildings in the neighborhood. A large construction project like that means the usual assortment of office trailers and other temporary buildings that have to be supplied with power. Since you don't want to set up noisy generators in a residential area, you usually borrow electricity from the nearest building. My landlord's contractors came up with a pretty neat solution to this, which I will present to you in the form of a simple step-by-step how-to guide.

Start by hooking into the building's power supply at a strategic location. Like, say, the ceiling by the back door.

So far, so good. Punch a hole through the wall to the outside and run the cable through it.

Now... how to route the cable? Just lay it on the ground and run it 20 m straight to the office trailer? Nah. Follow the wall - it's much tidier that way.

Whoops, looks like there was a light fixture in the way! And after that, a temperature sensor. No problem. Just route around them.

From there, just keep following the wall until you run out of cable.

Time to start on the next length of cable. Since both ends are hanging freely, you need to tape the connectors together with electrical tape to stop them from slipping out.