"No, you can't, because you are responsible for your own actions"

Forgiveness and responsibility...

I guess everyone is responsible for their own actions, except perhaps the insane and children up to acertain age who lack what is commonly called 'sense'.

From what you are saying it appears that you think Christians see 'forgiveness' as a sort of blank check to do what they like. Perhaps you think they shift the blame onto God. That's not so. That's not how Christians see forgiveness (any Christians out there are welcome to comment on my generalisation if they like)

Christian concept of forgiveness explained as best I can:

All things we do to hurt people are sins on two levels: they are sins against that person and since God has commanded us not to hurt each other, they are sins against God (i.e rejecting or going against His plan for creation)

Therefore forgiveness operates on two levels: God can (and does) forgive us for sins committed against Him (all sins fit in this category as we have seen). But He also expects us to 1) be sincere in our apology and have at least a sincere intention not to repeat our mistakes (though being human and weak it's unlikely we'll succeed for long). and 2) to make up / make restitution to the person we've sinned against.

An insincere apology is unlikely to sit well with God, and if you've experience of Him, you'll know what I mean. He's VERY patient but you'll know all the same...!

Part of that sincerity is trying to make up with the injured party, or if that's not possible (because they're too angry or hurt to even talk to you) to make it clear the door is open to them. If I steal from my friend and tell God I'm sorry, God will still expect me to give back the money as soon as I can to show my apology is sincere and to restore harmony. Sometimes it's impossible to make restitution directly, so there are other ways of doing penance: charitable works, self-sacrifice and so on.

God has a funny way of ensuring you do these things properly or you won't find much peace or rest. I don't remember where I saw or heard it, but a phrase I once heard was that every stolen thing cries out to God to be reunited with its rightful owner (I doubt that meant in an actual voice, but in the sense of somehow disrupting the balance or harmony of creation).

The corollory is of course that He expects other people to do the same for us, so it's a win-win situation when everyone pulls their weight. He also commands us to forgive each other and not hold grudges. This is difficult to do sometimes, it depends on what someone has done to you and whether they're even sorry. Prayer comes into place here - you can ask God to help you forgive.

One thing I have realised over the years, one significance of the Lord's prayer "and forgive us our tresspasses as we forgive those who trespass against us". One way fo reading that is we are asking God to match our mercy with His mercy. If we don't forgive people, can we expect God to be lenient with us? Just and fair, yes, as always, but merciful? We must exhibit the quality of mercy in order to expect it.

When we don't forgive people, we carry that around with us like a weight on the shoulders gnawing away at us. It's amazing how when you let go, the weight is immediately lifted off.

So Christian morality demands we be responsible for our actions - 1) sincerely saying sorry 2) accepting the sincere apologies of others as we would expect them to do for us 3) make restitution both to God and person.

Sounds easy, but as we all know in practice, it depends on what people have done! Some grudges are harder to shake off than others. But in my experience, prayer does help a lot in loosening them, and makes it easier for me to approach people I've hurt as well and be truly sorry in the ways outlined above.