15 ideas as to how the fish got there

Fantastical takes on an odd occurrence.

1. These fish swim in concrete and do so so slowly that their jumps up look as though they are frozen on the ground
2. There was a loose seal about MSI
3. There was ever so briefly a pond there and it dried up
4. When told to stock the nearby water with fish, someone thought there was a moat that carried to the back of the museum
5. These fish can live outside of water and were simply playing dead to avoid detection
6. Fish is the new confetti and a biodegradable one at that
7. Someone was trying to bribe dolphins to shore but overshot it
8. There was a music video that I will never understand filmed on that spot
9. It's the new TikTok trend to throw fish and dance and skate around them
10. These fish are on a failed spy mission from the pond behind MSI
11. I secretly drew this photograph
12. A fisherman realized the fish were cursed and threw them out the window of his car
13. They were part of a ritual to summon our snow storm
14. The sharknado had somewhat dissipated when it reached us so we only got fish
15. The fish escaped from becoming dinner, but did not make it home to the pond

(Prompt by me)