my pond my fish

My neighbour's grandchildren was caught red handed by my uncle yesterday for "playing with my pond". When discovered, they quickly ran to lower floor instead. Mum was quite upset because she believed this is not the first time they done that...now with enough evident, she went to our neighbour and highlighted the incident to their grandparents whom are very understanding folks. Mum hoped they can explain to their grandchildren and stop the mischievous act. I hope they learn. It really pain our heart when we witnessed the death of our fish and shrimp...