Mark Potter is the safety manager for Excello Corporation. Several months ago. he became concerned because employees seemed to have developed a lax attitude toward wearing hard hats. What really troubled Potter was that there is more than the usual potential for head injuries because of the type of work done in Excello's and he had personally witnessed two near misses in plant, less than a week. advocate behavior based safety(BBS), he decided to An of apply the ABC model in turning around this unsafe behavior pattern.