Just because two wires are touching, doesnt mean electricity can easily pass between them. Even if you twist two wires around each other, like a quick splice, and it looks like the wires have really good contact to the naked eye...To an electron, that gap is huge and sort of difficult for it to cross. Thats why things are soldered, essentially turning two pieces into one . Now if the two resistance wires were touching, and one of the wires was significantly longer in length than the other, then that could possible cause an electrical shortage in the longer wire (because the shorter wire might offer less resistance). But for our purposes, both wires will be almost exactly the same size, so it will not matter.
Think of yourself as an electron traveling through one of the wires. You are going along your road, and all of a sudden you see a different road running parallel to the one your already on. This second road is the same length as the road you are on now (it is not a shortcut), and it is just as bumpy and rocky as the road you are on now (same resistance); but to get to it, you need to jump over the grand canyon. Which road will you take?
The path of least resistance.
And actually electrons dont even travel along wire how most people think. All they do is bump the next electron in the chain, kind of like a wave at a football game. Not trying to be a smartass, just dont want to give out incorrect information.
