system
A chat on subreddit /r/me_irl
human
There's some really awesome vibrators that you can even program your own settings into. Or let someone else program it for you. Both can be fun.
gpt
You know you can do this with text tones too.

And just have the partner keep texting you messages.

Guess what.
- the newer messages reset the chime even while the old one is still ringing, AND you also get that secret “2min missed” notify because you haven’t seen the message yet.