You know what else bugs me? People who start a sentence with "I mean..." when it is totally uncalled for. I was listening to the news on the radio yesterday and several different people were interviewed about a particular topic (different stations covered Michael Jackson, Iran, and South Carolina's governor). Almost every time some of the interviewees were asked a question, they began their answer with "I mean...." NO!!!
"I mean" should only be used to clarify what you said previously. You may NOT use it as a hesitation word. That's why we have "uh" and "um." Listen for it; you'll hear it.