#3100: Alert Sound

XKCD comic, described below.
Transcript
Ambox notice.png This transcript is incomplete:
Don't remove this notice too soon. If you can fix this issue, edit the page!

[Cueball is sitting at his desk with a computer, surprised by a "Boop!" sound in the upper left part of the panel]

Cueball: AAAAA!

Cueball: I heard it again!

Cueball: Where is that coming from!?

[Caption below the panel:]

It turns out living well is only the second-best revenge. The best revenge is making a tiny hole in someone's wall and dropping in a battery-powered capsule that, every 6-12 hours, plays the alert sound of a USB device connecting.


(Sourced from explainxkcd.com)

Title text:With a good battery, the device can easily last for 5 or 10 years, although the walls probably won't.


ExplainOriginal