Assignment: write three sentences - one with a possessive verb, one with an action verb, and finally an exlamatory sentence

One of my sons recently sent the following email to family members:

I have sworn on my grandfather’s grave never to send out cute things my kids say, but I’m going to make an exception. Augustine [his son] was asked in grammar yesterday to write three sentences: one with a possessive verb, one with an action verb, and finally an exclamatory sentence:

1. I have a flamethrower.
2. I torched my grammar books.
3. “Wow! I have no more grammar books!”

Sorry, I couldn't help sharing ...