It's that time of year again

https://youtu.be/ZFLExwIQKto

Someone left a message on my car, but I can't make sense of it. Help?

If your home has radiator heating and you haven't upgraded your doorbell yet, I just don't know what's wrong with you.
https://www.ebay.com/itm/Antique-Brass-3-Chime-Lonergan-Steam-Whistle-with-Crane-Valve-Boat-RR-Locomotive/143889647452

@jonw I have one that launches a rickroll on someone's phone if I sneak in a tap when they're not looking, and another that contains my vCard to pass my contact info. I got them in late March, so I've never used them.