At the beginning of every year, hundreds of students electronically sign a Plagiarism Primer on PAnet designed to explain the nature and dangers of plagiarism. Some of these students go on to commit plagiarism later in the year. A few of these cases are purposeful plagiarism, where a student copies word-for-word part of an existing essay. Many of these cases, however, are examples of accidental plagiarism. A student could receive help from their parents or a friend and not credit their work...