When a character learns to relate an event with a reaction, and thus they will react the same way whenever that events happen.
The title refers to Ivan Pavlov, who researched classical conditioning
A Bavarian Fire Drill
is possible because of this.
- In Peter Pan a crocodile swallowed an alarm clock which keeps ticking, and Captain Hook uses this fact as a warning of its presence. At one point, he becomes desperate in fear due to being inside a house with lots of ticking clocks.
- In an episode of Rugrats Angelica is in bed and (ab)uses a bell to get attended by Tommy's parents, exasperating them. At one point, Tommy's father has a breakdown after hearing the door's bell.