I guess when you know someone who got the shot and had a violent reaction to it, nearly died, then you are more skeptical of the 1 in 100 thousand claim. I'm not super trusting of doctors always because I deal with them a lot in lawsuits. The things I have read about or heard about are crazy. Also doctors will lie through their teeths to protect studies, drugs, hospitals and their careers. Not saying i think the flu shot is some sinister plot its not. I do believe they feel its the best for the population as a whole. I'm just not sure it's a great idea for individuals who are young and at very little risk from the flu.
Also there are so many strains its sort of like a needle in a haystack approach.