That would have pissed me off so flocking much. I don't know how you could take it and not react in trying to find the person. I would have reported it to the police, or I would have done more than what you have. Nothing personal against you, but I wish I was in your place/situation. So I could get the guy or woman and kick their flocking arse...
But we do need people in the world who are not evil like that, which is why the world has people like you But thats no excuse for that bastidge to be pulling that crap on you. I have a pond, and I accidently bred my goldfish, they are 4 inches or a little smaller or wider and they had babies. I have loads of weedplants in their so the fish could hide. Should have spent my money on Koi instead of feeder Goldfish