Can you give examples of Badal?

I read in this sub:

For example, let’s talk about badal (revenge). When I was in school, some boys would retaliate in the same way or even more intensely for what was done to them. On the other hand, there were those who were forgiving and would simply laugh it off. However, on a larger scale, badal is followed by almost everyone to varying degrees. It’s not a written rule; you just instinctively act on it.

It is clear that if someone kills your brother, you are going to take revenge, but can you give more mild examples? Maybe those that you have done or seen. If your boss at work tells you he's going to pay you extra hours but then doesn't pay you, would you beat him or destroy things in the building? If you are in a car crash and you are suspicious the other driver was distracted, you ask for money or take revenge?

Also, would you think many do not take revenge on powerful people because they could retaliate against their family?