The same people can be good and evil. I guess i mean good and evil as in the action rather than who does it. As in, the background, motivation, action, result of evil is usually the similar all the time. Something i noticed in crime documentaries. The details change but they are all very similar. But in good the background, motivation etc are usually different and not easy to put into categories because they come from the most random places. Like a thief breaking into a house and saving an overdose victim. Its more fun because its more unexpected.