The Rat has one goal: to be very successful. Rats will look their whole life for the recognition they claim to deserve. They can invest all their money and effort into something valiant but then fail because they get too detail oriented and lose sight of the big picture.
The smallest little thing can distract a Rat. However, their charm may just be enough to get them through any rough patch ... and enable them to survive with not much money at all. Rats make great bankers, sales people, politicians and software specialists.