The Trials of the Workplace (cont’d)

I am having what I described as a ‘bad day’ in my previous post on this topic. I really want to know what people were thinking when they offered a job to a particular nuisance at my job. Normally I try to think of this person as my source of entertainment but it’s not funny anymore. The minor annoyances have now fully blown up to the point that I so want to dish out a piece of my mind. Should I even express my thoughts or should I save them for the day when either one of us leaves this organization? The latter would be the ideal because honestly how do you go about telling someone that you believe they are totally incompetent and saying that he/she has the mentality of a 5 year old will actually be an insult to the child? I suppose I will just add this question to my every growing list of trials one must endure while at work.