Catch and release

The fishers on TV never keep the fish. They measure it, weigh it, and then let it go. Isn't the whole point of fishing to provide food if you don't have the money to buy it?
Now if those people bought a gold fish as a pet. Would they keep it? Or would they release it back into the wild? On the table would probably be a fish bowl with water and the decoration, but no fish.
If these people were to buy a hooker. They would bring her home. Place her on a scale to weigh her, then measure her. Then let her back onto the streets.
If the navy had a catch and release program for terrorists, it might look something like this: