Learn to use yours, and don't be such a tightwad. There was no need to enter this conversation with an insult, but since you are evidently void of proper human conventions, ill remind you that its not nice or appropriate.
A man committing grand theft auto in my eyes is a man who is capable and willing to use force to prevent getting caught. If I caught the guy, Id be very concerned for my life. I certainly would not approach with nothing but a flashlight. A police officer would have his gun drawn too as he approached the scene.