Might be worth relating this story again although it's not the norm but it does relate to my Fishing Spot Enigma thread.
Mate of mine, we fished every week and for years we went to the same stretch of river on and off. One day we walked a bit further than usual and he find a nice lily pad. he had a good day in relation to what we normally had including a couple of nice river tench, he was made up with that. He was sold, wouldn't fish anywhere else after that for the rest of the year, hardly ever caught another fish and certainly no tench. Come the next season he was straight back on it with the same result. I tried to wean him away but he wouldn't have it, apart from anything else I got peed off having to walk to it- it was a fair distance, eventually he accepted it and went back to normal AND started to catch some fish but it took a good year or two.
Fishing, no rhyme or reason to it, makes men go mad