Think back to your first job and try to remember how you dealt with customers. Were you the polite type who tried to solve every situation without an argument, or were you the type to bring in your manager so you wouldn't flip out on that customer? Either type is fine, because let's face it, some customers are just the worst people. They have zero respect for the hard workers in retail positions, fast food jobs, or call center reps. All these customers can think about is themselves and their ow…