What is the most evil thing you could possibly do?

I was talking to my friend today and the subject of the Norwegian mass murderer came up. He was an utter piece of shit who deserves everything he got and more. <br><br>However he is certainly one of the evilest people in history and it got me thinking, what is the most evil thing you could do? Obviously mass murder is pretty high up there but I can think of a few more. <br><br>Here are a few ideas: <br><br>- mass murder<br>- mass rape<br>- mass child abuse<br>- deliberately spreading diseases to civilians<br>- using civilians as human shields <br>- forcing them into combat against an enemy where they will most likely be killed<br>- Genocide<br><br>What other examples can you think of?<br><br>&#x200B;