It's Not My Fault!

The act of blaming someone else or something else has a long history--it's been around since the beginning.

  The Lord God said to Adam, "Who told you that you were naked? Have you eaten from the tree of which I commanded you not to eat?" And the man said, "The woman whom Thou gavest to be with me, she gave me from the tree, and I ate." Then the Lord God said to the woman, "What is this you have done?" And the woman said, "The serpent deceived me, and I ate."
Genesis 3:11-13
  By attempting to place the blame elsewhere one assumes a "victim" mentality. Any effort by others to hold one accountable is met with denial: "Don't blame me!" While other people and circumstances may influence our decision to do something, we cannot deny it was our decision. Unless and until one assumes responsibility for his or her actions, one remains in the state of denial and unaccountability.
Note in the Genesis account above:
Adam said. "She gave it to me." (It's not my fault!)
Eve said, "The serpent deceived me." (It's not my fault!)
God said: "You both are at fault!"
  Eve was not forced to eat the forbidden fruit, nor was Adam. They both made a conscious decision and suffered the consequences. The same is true today.

Any attempt to shift the blame is an effort in futility.