They know whatever they do/say they will get away with it. So they do it they say and by golly they get away with it. Do YOU do that too?

You will do whatever it is you want to do because you know you can get away with it.

Whether is is cruel or evil or illegal or immoral is never a consideration.

"Can I get away with it"? If the answer is in the affirmative you do it. Why wouldn't you? What kind of a dam* fool does the right thing even when he/she can get away with anything? SIGH.