People often take no responsibility for their words or actions

 Your words, my words, may have caused someone great joy or misery.

People will blame the addict, the alcohol, the drugs as the cause for another person's death, destruction, loss or illness. They won't take responsibility and blame themselves for causing another person to become an addict, an alcoholic or committing suicide. 

They poke others with a stick that hurts then blame the others for hurting.