Every job has its difficulties. Teachers deal with students who don't want to learn. Doctors listen to patients complain about preventable illnesses. Construction workers face the elements and a nearly constant uncertainty about their next project. As a security guard the greatest drawback is almost always dealing with the public. You are the face of authority and a lightning rod for trouble. That nice lady who brings you a doughnut once a week...she may turn into a screaming ball of rage when you tell her she can't block the wheelchair accessible parking spaces.