This extraordinary tale of a punctuation disaster is sure to please higher level ESL/ELA students as they study the serial comma (Oxford comma) with an article, practice examples, role play, vocabulary, and discussion.If you don't think bad grammar can cost you, think again! This is the true story of a single comma that cost one company $5 million dollars, and a major win for all the grammar police out there! :o~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Advanc