Fight Animals for Pocket Change
Nobody's going to walk into a room and judge you for slaughtering woodland creatures in Final Fantasy, no matter how large your fuzzy, little body count is. After all, how else are you going to get enough gil to buy that next weapon? But in real life, generally speaking, squirrels don't really carry much change on them. If you're walking down the street and see a tiny mammal, you should probably not run up and kick it in an attempt to get some extra bus money.