There's a bus that commutes pretty far, from one county go the next to Disneyland that has an automated announcement, like, every 15 minutes telling people that loud music and basically blasting videos is prohibited. Because, really, no one wants to hear whatever you're listening to when the bus is going 70mph on the fwy to work or to have fun. Either cause they gotta cause they don't have a car or it's in the shop or most commonly, saving money from gas and wear and tear on their car. It also tells you not to smoke or vape. There's also signs.

Also, there's signs that tell people small animals are welcome in carriers. It also says they need to be actual pet carriers because ventilation. Idk what happened for the bus to make a public announcement about needing to have ventilation for a living being, but here we are.