Sammy runs into the room excitedly:
Sammy: Dad, dad. Dad. Um... You know that thing... I mean, what's that thing in your mouth?
Dad: In my mouth? Nothing.
Sammy: No. No.The thing in my mouth. What's it called? The one that blows up. Look watch.
Sammy sticks out his tongue.
Dad: Your tongue?
Sammy: Nooo. You know, it's pink and it goes pop. What's that called?
Dad: In your mouth?
Dad: In your mouth right now? Ummm. Tonsils?
Emily: (big sigh) He's talking about chewing gum dad, everybody knows that
Sammy: Yes! Chewing gum
Dad: But you haven't got any chewing gum in your mouth.
Sammy: Haven't I? What's this then?
Sticks out his tongue again.
Dad: Your tongue.
Sammy: Oh... (pause for thought) Oh! Dad. Imagine my tongue is chewing gum. Watch this...
Sammy slowly sticks out his tongue until it can go no further then shouts.
Sammy: POP! Woah! Did you see that Dad? Did you see the size of that bubble? I love chewing gum Dad. It's great. Do you want a go?
Dad: I... To be honest Sam, I'm not sure what's going on right now