Commas or no commas in this sentence

[Dennis S]

Todd's keyboard wrote:
Wow, I love the Oxford comma. I wrote a book that did not use Oxford commas, and I wish I could take back all of the copies and insert multitudes of Oxford commas. (It was not that important a book.)

We invited two clowns, my English teacher and my math teacher. (two people were invited)

We invited two clowns, my English teacher, and my math teacher. (four people were invited)

Todd's Limey keyboard

My favorite: “At the bar were two lesbians, Merle Haggard and Henry Kissinger.”