Harry...You should be "old enough to know." That's what you told me here yesterday.

That whole "forgiveness" business. It's not a get out of jail free card you can play over and over again. It's not ala carte either. You can't say "forgive me" like you have a "get out of jail free" card for each and every individual thing. Lastly, and this IMO is the one you need to hear the most. What you may not consider "a sin", may actually be "a sin." Your "They did it so I can do it too" is a great example of that.

Another one I like is the preemptive "forgive me for what I'm about to do" sins. You are not asking permission. The whole "Do Gods work" thing. Yunno, "Heard the voice of God"/"The Calling" kinda stuff. You ask for forgiveness after the fact and cop to why you do what you do...Then go on your way and don't consciously and deliberately break God's laws or whatever it is religious people do.

It's a one time thing. 

That's how it is in Smooth's house of warship. It's that simple.