Oh man that's just unforgivable! Those people are clearly bored with their lame lives and should be punished by whipping their backs with a lash with thorns. I haven't experienced that but it sounds really awful.
One time we were at school and my professor received a call saying that his kid's already dead. I saw my prof passed out in shock and I felt like my world crumbled because she was my favorite teacher and I don't want her to lose her only son. We reported it to the police only to know that it was just a prank call. Unfortunately we weren't able to track the origin of the call.
It's totally fine that you posted this at least you have an avenue to vent out your feelings. Irrational? No, not at all. I hope you're all okay now.