In an article that I saw in Yahoo, six points are listed as checkpoints to see whether our present job is suitable or not to continue.
Some of the points are like, no more impact, people are not liking the ideas, don't like going to the work, etc which are mostly faced by safety professionals. Unless safety culture is introduced from day one of the factory started, people don't like to follow safety principles, as they feel that they are imposed. With people around not liking/listening means no impact in safety culture in the factory inspite of best efforts by the safety professional making him feel irrelevant, no job satisfaction, and don't feel like going.
But, this will be the situation generally everywhere as there will be hard nuts everywhere and if one keeps changing the job, finally the person will be branded as rolling stone and will not be considered for jobs at all. Possibly, one should do more research on the company he intends to join before and try to settle.