perish the thought

They're after my chocolate.

The lass hears me rustling in a snack container and says "choc'lat" (as in chips) and makes it clear she wants some.   
How'd she know that's what in there?

The younger lad tells his elder brother as the latter boards the Bambini Ride, "we bought a chocolate bar at Target this morning.  Want to share it?"   
What's this "we" business?  Who said anything about sharing?

The elder lad moseys into the pantry and asks if he can have "something from the secret stash."
Apparently, it isn't so secret.