Here's one for you! My DIL works part time at a newspaper the day the papers are printed. She works back there where they make/print them. It is so noisey that they have to wear ear protection...ear muffs. Her cell vibrates when she is working one day, she looks, it is her mother so she answers and puts the ear part under her protective ear muff which holds the phone, frees up her hands to continue working while she carries on a long phone conversation in a place that is so loud that nobody can tell she is talking on the phone!