Hi I'm so sorry I don't mean to embarass you but I think your headphones fell out of your phone, it must have happened at the bus stop, your phone has just been playing out loud in your hand this whole time and you didn't notice. So sorry, you must be so embarrassed, really I wouldn't have said anything but I know I'd be mortified if that happened to me and I didn't notice until I got home or something. I'd be so self conscious, can you imagine people thinking you were being disruptive and obnoxious on purpose. Haha yeah no worries have a great day