Scouts taught us boys well: "Only kill it if you're going to eat it." In this case, it was to save my life!
Anyways, some in North America and Western Europe think it's "mean" to kill fish. Sadly, they never knew the American Indian or Judeo-Christian tradition.
The third book of Moses commonly called Leviticus has some great things to say about eating meat and fish...in Chapter 11...allora si legga!