My mom’s pet fish jumped out of a fish jar one day long time ago and my dog found a fish on a floor and ate it. After that day she always try to eat my mom’s living pet fish in other fish jars, like try to put her mouth and paws in the jars. She ate about 5-6 of it so far. I tried to put her nose near my mom’s death fish and hit her to make sure she knows that eating my mom’s pet fish is a wrong thing. After I hit her, she seems to know she did wrong because she acted like she’s feeling guilty but the next day she ate it again. What should I do? Please help.