I have one coworker who is incredibly loud, and often abrasive, and he will have personal phone conversations with his friends, girlfriend, parents, etc, without toning it down or going somewhere private.

I'm currently listening to him have an argument with his mom about his car. He's being a total jackass and I have no idea why he would want anyone to overhear a family argument?

At the last place I worked (cubicles) there was one woman who called her partner every day, at the same time, and loudly discussed her mother's medical issues. I knew whenever that woman's mother was dizzy, had diarrhea, etc. I also learned, through that one woman's phone calls, that she (now a lesbian with a live-in partner), was once a nun, left the convent, married and had kids, divorced, then met her partner. I literally NEVER spoke to this woman, but I felt like I knew her intimately!

Whenever I need to make or take a personal phone call, I step out of the office for a a minute, or try to be discreet and then tell the person we can talk more later.

Anyone else "know" their coworkers without really knowing them?