Anon makes life choices

I have a family friend who grew up near a creek. He loved bass fishing, so when he heard that invasive carp were eating bass eggs he took that personally.

He'd go out night after night bow hunting carp. He'd kill them and throw them on the bank for animals to eat. Dozens of these huge fish every night for years.

Eventually he cleaned out several miles of the creek by his house, and it's some of the best bass fishing in the area.

tl;dr - He got a degree in fisheries.