Responses
Not only kidnapping, it’s used for all dealing cases with emotional people; attempting suicide, holding hostage, quarrel, etc. Don’t you see news that many people impulsively killed others, spouses or even themselves because of provocation. If you handle the circumstance right, you can save others too, not only yourself, or at least don’t make it worse.
FYI There're many people imitate comics this-that, including crime.
IRL To deal with the emotional psycho, you should have tried to calm him down. He was upset to point of becoming a serial killer. How could you keep provoking to make him upset more? If he impulsively cut your stomach to take the baby out, what can you do?