If you're fishing to eat, then fine... All you larat makan, you fish la.

Don't fish just for the sake of your enjoyment 'fighting' the fish... You might enjoy it. The fish don't. They're fighting for their lives.

After you defeated and landed the fish, you release it again... to fish for another day... If that's not cruel, I don't think anything is...
BRB Imma go play 'fishing' with a cat... you know, put food in the hook... entice the cat to eat that food... ah you know the drill