If they weren't yours.
Just had a 40 minute bus journey with 2 young boys shrieking at top note, shouting, for the entire journey. The occasional sssh from their mum/guardian but that's it. I know there's only so much she could do, but they were infuriating.
I felt like I couldn't say anything, but I was tempted. Nobody else did either, would you have done?
I could still hear them through music, need some noise cancelling earphones.