"Think before you speak" is an excellent rule that many of us regularly forget to follow. Speaking without thinking can have pretty disastrous consequences, because words can do a lot of damage—even the ones we didn't intend to be hurtful. And it's not just the person on the receiving end of an accidental insult who suffers. Because guilt often lasts longer than the damage the words inflicted in the first part.
1.) From ClearlyAThrowaway133:
It happened my Freshman year. Three years ago. Back when I thought saying "your mom" as an answer to any question without thinking was the best thing in the world.
Anyway, I was walking to class one day, and talking with my friend Andy. We are almost there, and he stops and says "Oops. I need my math book." I immediately reply "You need YOUR MOM!" He responds with a soft "yeah..." then he turns and walks away, looking the epitome of dejected. I was confused by his response. Why wasn't he laughing at my hilarious joke??
I was sitting in class pondering it when I remember his mom died...of cancer... a week before.
Neither "Guilt" nor "Shame" can accurately describe how I felt/still feel. -cringe-