Same type of thing happened to me, had permission to fish a pond that hadn't been fished in YEARS.
Got there right at crack of day, mid- October, got the boat backed in, picked up a random rod with a squarebill tied on and slung a hail Mary straight out in the middle of the pond. Started a nice slow crank with a 2-3 reel pause and WHAM! Got slammed, fought her in the boat, 7lb LMB. Perfect way to start the day off
Never have had that happen again. Right place, right time, right bass.