Makes me think of that classic scene between Jude Law and Dustin Hoffman in "I [Heart] Huckabees" --

Hoffman: ... are you being yourself?

Law [increduluous]: How am I not myself?!

Hoffman : "How am I not myself."

Law: _How am I not myself?_

Hoffman : "How am I not myself."

Law [distressed, starting to choke up]: How am I not myself.