There are little gadgets to prank people with that beep at random times and are hard to pinpoint.
https://www.amazon.com/AnnoyingPCB-Ultimate-Productivity-Destroyer-Assembled/dp/B08KG6XHN1
https://boingboing.net/2022/02/01/prank-beeping-device-now-eviler-than-ever.html/amp
I could easily find $450 of books that I want to read.
or $450 of The Prank Device That Won’t Stop Beeping for 3 Years and share them everywhere I go.