Plural of “Mongoose”

A zookeeper wanted to get some extra animals for his zoo, so he decided to compose a letter. The only problem was that he didn’t know the plural of “Mongoose.”
He started the letter: “To whom it may concern, I need two Mongeese.”
No, that won’t work. He tried again: “To whom it may concern, I need two Mongooses.”
“Is that right?” he thought to himself.
Finally, he got an idea: “To whom it may concern, I need a Mongoose, and while you’re at it, send me another one.”

Good excuse

Member of the United States Congress