I had to stop using a particular restroom in my building because someone felt it was the best possible place to have all her cell phone conversations. I don't have shy bladder issues, but there is something very disconcerting about hearing "yaddayaddayadda-tinkletinkle-blahblahblah-plonk-natternatternatter-kerswoosh" from the next stall, all without her ever stopping the endless commentary. She has moved on, thank goodness.
That needs to be put to music. Would be a catchy tune.