The document defines and provides examples of several common psychological defense mechanisms:
1) Denial is refusing to accept reality because it is too painful, like denying having an alcohol problem despite multiple drunk driving arrests.
2) Projection is attributing one's own undesired thoughts or feelings to others, like getting angry at a spouse for not listening when the angry person is actually the poor listener.
3) Rationalization is justifying behaviors with acceptable reasons rather than the real motivations, such as claiming cheating on a test is okay because many others do it.