Danny enjoyed his aquarium. It was a hobby. He had the aquarium in the sitting room where all could enjoy it watching the fish. He knew it was a silly thing to try to tell seven drunken teens not to swallow another loach. They swore at him and one started to chase the remaining clown loach around and around in the aquarium with a pocket knife.
Danny stepped in. A youth pushed the aquarium over and glass shattered everywhere. Water drenched the carpet. Everyone laughed hysterically, until they realized that the guy who had pushed the aquarium over has cut his arm rather badly. Danny had to quickly bandage the arm and call for an ambulance.
It was all a waste of time anyway. The youth died in the ambulance. Some sort of bacterial poisoning from the gut of the fish.