A Nice and noble thought, it is often very difficult not to get annoyed or avoiding getting back at people who misbehave with us. Initially, we may try to step aside but if it's persistent then we have to react to it. Often in my personal experience, I've noticed that if you do not show any reaction and just smile away the intrusion, then people mistake that would are a meek person and keep meddling with us regularly. At such times we have to be assertive enough to send a message that further intrusions and wrong deeds will not be tolerated. It is also important to note that people come in various sizes and shapes, if we were to take every single issue up, then we wouldn't have time for or own work and we wouldn't be left with friends and acquaintances. What we need is a calm and cool approach, what is the reason for the misbehavior, have we wronged them, is the person worth wasting our time? Once we answer these simple questions, then its easy to plan the next step, which would often be ignore and move on.