I like these badges, and want them for my school. First, we absolutely need better gun laws and need to change the gun culture in the United States. But even the school shooter stuff aside, we have 700 elementary kids at my school. Several are prone to seizures. Several are diabetic. MANY have life threatening allergies. Several have disabilities (or poor parenting/lack of resources at home) that leave them prone to outbursts that at a minimum disrupt the classroom and at most endanger the safety of the other students. We do not have enough walkies to give one to every teacher who has a severe need in their classroom. That leaves the option of calling the front office or going to the wall and pushing the call button for the office to respond. Badges like this can help so many stressful situations, and eliminate the excessive amount of chatter on a walkie.
I got these almost every morning when I was pregnant. Thankfully they only lasted a few minutes (besides a soreness for the rest of the day), but they sucked. I had to train myself to not move my legs in my sleep.