Ever watch an R-rated movie on network TV or basic cable, and realize that half the dialogue has been bleeped, omitted, or replaced? Zack and Miri Make a Porno is on Comedy Central and it's actually sort of fascinating to see what is left out and what passes*.
Of course, most of us have our own censoring process, articulated or not. Whether it's manners or fear, we do not say every thing that pops into our head. But how often does it mean that a message is lost? Does our etiquette or self-preservation mean that truth is left unspoken?
*Apparently sh!t can be used as a general noun, but not as a scatological term. Go figure.