When I was doing my training bit in the RAF we had a Summer Camp in Wales . One of our lads was a Country guy who showed us how to tickle trout in the stream by the main camp Site ! Nothing of any real size , but for a City Boy even a Six Inch trout caught by hand was FUN ! And ALL thrown back in straight away - I dobt think the Mess Sergeant would have countenanced the idea of frying them up for us !