Originally Posted by
IAH-OIL-TRASH
Not saying this applies to you,
but a lot of people are completely oblivious to how loud their conversation is. I think some people think they have to raise their voice for the phone to actually transmit it

, or have to have the volume turned up to "11" so they can hear what's coming out of it.
This. There is a reason why some airport lounges still have “phone booths” designed to spare everyone else the pleasure of someone’s too loud call.