How do you play evil sims?

I have no mods and a family of two evil sims with a good child (trait rolled at random). I thought it would be hell for both parents and kid but they are getting along mostly just fine. Sometimes child receives sad moodlets from "good vs evil" but nothing dramatic. And this upsets me a lot. Also autonomously they are usually pretty neutral with others jumping from insults to gossiping and jokes.

I also would like to hear others' ideas about criminal activities for evil sims. I have a "gang" club for playing cards and being mean to others. Also my sim can pick-pocket from career abilities. The last thing I'm yet to try is raising sim handiness to break into someone's safe from Get Famous. But that's pretty much all I can think about and nothing of it (besides bank robbery) stands as super criminal/evil to me. Any other ideas for criminal activities our evil sims can participate in? And how to make them more evil?