Infringement Nation (excerpt)
To illustrate the unwitting infringement that has become quotidian for the average American, take an ordinary day in the life of a hypothetical law professor named John. For the purposes of this Gedankenexperiment, we assume the worst case scenario of full enforcement of rights by copyright holders and an uncharitable, though perfectly plausible, reading of existing case law and the fair use doctrine. Fair use is, after all, notoriously fickle and the defense offers little ex ante refuge to users of copyrighted works.

In the morning, John checks his email, and, in so doing, begins to tally up the liability. Following common practice, he has set his mail browser to automatically reproduce the text to which he is responding in any email he drafts. Each unauthorized reproduction of someone else

A hippie professor.

That's probably why he has no respect for the law!