I always seem to overhear other people's personal problems.  There could be a ton of background noise and I could be diligently working, but it's impossible for me to not hear "kidney stones" or "________ infection".  Maybe I'm a jerk because I listen to other people's conversations.  I guess it's just a little difficult to tune something out when it's blabbing loud enough for anyone to hear.  Maybe some people are more open about things like that.  I personally wouldn't go around talking about my "foot odor problem" or my "failure to change my underwear today".  I guess I'm just different.