Grammar Question

Oxford University Press is apparently going to begin listing some non-words in their dictionary. Eric Zorn expresses horror that his employer finds this acceptable.

I'm curious to know if there are any good examples of the mis-use of these phrases causing ambiguity. As an examples, "To my parents, Ayn Rand and God" is the canonical argument for the serial comma. Are there similar examples for the phrases, "vocal chord," "reign in," "baited breath," and "straight-laced"?