I read all kinds of things about KOI carp while I was thinking about what to write in the post. Goldfish were also mentioned.
When I was taking pictures of KOI, there was a family with a small child next to me. The boy, who leaned down to the water, was very frightened when KOI began to gather around him. To that little boy KOI may have seemed like wild beasts, sharks to say the least 😀