Invoked: "The tracker is installed. We should let Bob escape, but it needs to be hard so he thinks he's gotten away." "Let's put a conveniently large vent leading to his room."
Defied: "Go in the vents? That's the first place they'll look for escapees!"
Discussed: "I happen to know that this building has extra-large, reinforced air vents, specifically installed to provide the inhabitants with a means of emergency exit." "Fantastic! How do we-" "Yeah, they aren't hooked up to the prison cells. These guys aren't morons."
Conversed: "You just wait and see; he'll go into the ducts eventually."
Deconstructed: Bob comes close to being badly injured by a fan he tries to jump through. He realises he has no idea how to find his way around, and starts panicking that he'll be trapped for ever. However, the ductwork transmits the sound of his movement throughout the building, and his captors catch him in minutes.
Reconstructed: Bob only uses the ducts after exhausting every other option, and is careful to stick to the larger, stronger vents. Knowing he won't be able to sneak through them for very long, he uses them just to get into the nearest corridor.
The way back to Air-Vent Passageway is too heavily guarded. Looks like we'll have to go through... oh, how did you guess?