Ya know, I'll bet fish who are caught and returned are a lot like people who are abducted by space aliens.
You're swimming along, minding your own business, hanging out with your fish buddies, and lo and behold, a big fat juicy worm.
So, you do what any fish would do, you chomp down on it. And "HEY.... Whoa!!!!" .... up you go to the mother ship. And they prod you, and photograph you, and pass you around to the other aliens, and finally after scaring you half to death, they return you to the place they took you from.
And then you tell your fish buddies what happened, and they're all like "yeah, sure" and they talk about you behind your back and now you're that crazy fish who believes in life above the water, and stuff.