Social weaponizing of my phone

"Grup, grup" this you little shit.

I heard this piece on NPR:
Teens Turn 'Repeller' into Adult-Proof Ringtone
and thought "Hey, I've got a phone that'll play mp3's!" If I can't hear the noise, then I can purpose the tone to its original use.
Great for clearing a space on a noisy train as school lets out.