Most people try to live on either the light or dark side of life, striving to do mostly good or the most harm as they live in a morally black and white world.
They are stuck in a role, unable to seize all the opportunities life throws their way, which is just fine by those who live a morally loose life because it gives them more chances to come up.
Need to make some cash on Craigslist? Lowball the seller anonymously then buy low, it's only a slightly awful thing to do, not full blown evil so you won't go full blown dark side.
Spilling soda at the movie theater ain't such an evil act either, nor is using an old pic of your flat tire to bail on work or an event because you know what? You deserve to enjoy your leisure time to the max, so block the movie ruiners and skip the social obligations- for your health.
See 15 Life Hacks For People With Loose Morals here (NSFW language)