I knew I was forgetting something from that lunch with second-graders yesterday:
When I asked the kids what they’d been doing in class that morning, they said they were learning about compound words. So I asked what compound words they’d learned.
One little guy said: “Doghouse… newspaper… mailbox… people.”
I thought, Huh? “People”? But if you say it out loud, it does sound kind of like a compound word.
Surfing the Inner N8 
That’s great! I’m sure English teacher would love it as a joke to tell.
My grandmother was an English teacher, and she was full of stories like this!