This thread really got me thinking. So I did some research and ordered this for my daughter. Wife packs her G42, but she will get one as well. Finally my youngest girl in 6th grade will receive one as well. Not the cure all but a neat idea if needed.
https://www.amazon.com/Guardian-Personal-Prevention-Whistle-Flashlight/dp/B01N32ZB2C
https://www.amazon.com/Guardian-Personal-Prevention-Whistle-Flashlight/dp/B01N32ZB2C