I discovered something amazing. Parents have the aquarium. Why I haven't noticed this before?!
Mom: Sheldon leave the fish alone...
Sheldon: It looks so yummy... purrrrr...
Mom: SHELDON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sheldon: Mom... please don't yell at me.
Mom: I will not if you stop hunting on fish. They are your friends... not dinner!
Sheldon: But can I eat just one??? Pleaseeee.....
Mom: SHELDON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sheldon: Ok...ok... I just kidding. =^^=