My youngest daughter is home for Christmas, and has brought her two cats. We have to keep the kitchen door closed as there are attractions ........ like any uncovered food ...... and the goldfish.
I used to have an aquarium with suspended lights and a sheet of glass covering the top. My cat used to love to lie on top of it basking in the heat from lights and watching the fishes. Once when I was doing a water change I heard a strange noise and went to have a look. Yes she had jumped up and found herself getting a bath, not a very happy cat...!
Cat update: My wife made herself a lunch of a pilchard sandwich. Got distracted and the cats got attracted to her lunch and open tin in no time at all. One cat was seen licking its lips.