I remember fishing the canal and having two kids come and ask me if i knew i could get 5 for each pike i killed and handed over to BW!!!!
I stood on a bridge and saw a guy fishing a match on the cut catch a little jack and then thrown it straight in the hedge behind him, needless to say i've contacted the club who's stretch it was and told them
I guess i get a bit more bothered about it because i class myself as a predator angler although i do fish for other species as well but i wouldn't kill a fish just because it may interfere with my chosen style of fishing, hell i won't even kill a trout if i catch one!!