MbShea@PWP@English@UMCP

To my parents, Ayn Rand and God.

To my parents, J.K. Rowling and God.

To my parents, Stephen Colbert and Jon Stewart.

OR

In a newspaper account of a documentary about Merle Haggard:

Among those interviewed were his two ex-wives, Kris Kristofferson and Robert Duvall.

These two preceding examples are from Theresa Hayden. Here is another doosie that cries out for a serial or Oxford comma.

 Here is another doosie that cries out for a serial or Oxford comma.

The Times once published an unintentionally humorous description of a Peter Ustinov documentary, noting that

"highlights of his global tour include encounters with Nelson Mandela, an 800-year-old demigod and a dildo collector."

Now, to be clear, the serial comma does not always solve ambiguity problems:

They went to Oregon with Betty, a maid and a cook –

• They went to Oregon with Betty, who was a maid and a cook. (One person)
• They went to Oregon with Betty, both a maid and a cook. (One person)
• They went to Oregon with Betty, a maid and cook. (One person)
• They went to Oregon with Betty (a maid) and a cook. (Two people)
• They went to Oregon with Betty, a maid, and with a cook. (Two people)
• They went to Oregon with Betty – a maid – and a cook. (Two people)
• They went to Oregon with the maid Betty and a cook. (Two people)
• They went to Oregon with a cook and Betty, a maid. (Two people)
• They went to Oregon with Betty as well as a maid and a cook. (Three people)
• They went to Oregon with Betty and a maid and a cook. (Three people)
• They went to Oregon with Betty, one maid and a cook. (Three people)
• They went to Oregon with a maid, a cook, and Betty. (Three people)

We can also look at the grocery list problem: 

buying  bread, jam, coffee, cream, juice, eggs, and bacon. VS

eating toast and jam, coffee and cream, juice, and bacon and eggs

Finally, we have a theme song to remember this punctuation convention. 

And, this from S.C.

http://www.cc.com/video-clips/fo5d9i/the-colbert-report-vampire-weekend