A creek ran through Phu Cat that contained fresh water tropical fish such as garamis and walking catfish. I obtained a 20MM ammunition box and with the help of Civil Engineering turned it into an acquarium, shown in pic 1. I caught some fish in the creek and put them in the tank. The maids in our porta-camper area, pic 2, all came around to admire the fish. Soon other fish appeared in my acquarium, larger, nicer fish. Some days there were fewer fish than on other days. One day I found the dirt disturbed behind our porta-camper. I found fish bones burried in the ground. The maids were using my acquarium as a holding tank for their future lunches. They would take out their fish and cook it for their lunch and bury the bones. Periodically they would restock the "holding tank".