Ye Shuang's first response when she saw that finger was to ignore it. People would do things they would not normally do when they had adrenaline pumping through their blood like taunting and flipping others the bird. When would people have too much adrenaline in their blood? When they were drinking or in a high-stakes game…
Taking such people seriously would only bring harm to oneself because those in a high adrenaline state were no different from those with low IQ. Taking them seriously would only lower oneself to their level.
On top of that, the other reason Ye Shuang did not rise to the bait was because she knew the other party's car was modified. Even though the car modification industry in the country was not as vibrant as overseas, it was still a modification. It had an advantage over Little Brother Yuan's car, which was the out-of-the-factory model.