The grandboy is reading the instructions on a trampoline.

Grandboy: Hey it says children should be using this with supervision. So I need an adult with me.

Me: You wouldn’t need one if you were Superboy.

Grandboy: Huh? Why is that?

Me: Because he already has super vision.

Grandboy: AAAAAHHHHH

We are enjoying the bonfire.  The grandboy comes walking over with a smoldering piece of wood.

Grandboy: Grandpa, we’re both lucky.

Me: Oh yah? Why is that?

Grandboy (with a look of suspicion on his face): Well, this is the SECOND time I’ve rescued my hammer and battle rifle from your fire.

Me (thinking quickly, as I didn’t realize it had made it into the burn pile): Well now it’s stronger for having survived the fire.

Grandboy: Twice.

Me: And that’s actually how ancient warriors used to harden their spears.

Grandboy (whacking the ground with his blackened weapon now that it’s in Hammer Mode): Yep look how strong this is!