And if someone in the next train carriage dies because they're having a heart attack and no-one can call for help (including the driver/conductor), you'd be lia

And if someone in the next train carriage dies because they're having a heart attack and no-one can call for help (including the driver/conductor), you'd be liable for manslaughter. Loud conversations in a public place are annoying, but guess what? it's a public space, and you don't have a right to quiet there, let alone exclusive control over radio communications. The sheer entitlement in your post is astounding.