You cannot ride a public bus with a goldfish in a bowl unless the bowl is stationary.

The Law Explained

Transit authorities enacted this weirdly specific rule to prevent spilled water and slippery floors on moving buses. Passengers bringing pets home from the carnival or pet store had a tendency to slosh fish water onto other riders. To keep the peace and keep the aisles dry, the city required all fishbowls to be properly secured and sealed.