I had to laugh at a co-worker of mine. A few nights ago, wrote up a background paper to our leadership about a recurring technical issue. He asked me to read it over to see if it made sense. I said it looked okay but asked if he meant to write it entirely in passive-voice. About half an hour later, he sent the message out. I read it again and found he simply changed all the "was" and "were" to "is" and "are".