HW: What is a number that has two vowels in it?
S: Five!
HW: Good! How do you spell five?
S: F-I-V-E
HW: Good! What's another number that has two vowels in it?
S: Three!
HW: Good! How do you spell three?
S: I don't know
HW: Well, how do you spell the "th" sound?
S: Eth
[Hobbit Wife sits there with a big English major grin]
