^^^ Thats the point, only some are fine.
Just listen to what your saying, it even sounds childish. Look at it this way, i knew of 4 people who smoked 100 cigarettes a day, they all died from some form of cancer. Now i could say well i should be ok because i heard of some guy in the next town who smoked 100 a day and he was fine.. You see its the same principle.....