When I was a kid I used to go onto our local golf course and fish (of course this is before I switched all FLY!) Caught tons of bluegill, crappie, and some pretty big bass. One pond had goldfish (comets, shobunkins, and a few koi to fellow water gardeners) and made quite a few nice additions to my fish pond. Also used to catch huge bullfrogs (sometimes on our lures!) Of course I felt no guilt, however, this was about as far from a public golf course as you could get... nearly every trip ended in a golf cart chase by the greenskeeper.