You sound like a bitch to be honest. You worked in a factory for a couple hours and quit because they didn't throw you on the forklift the first hour you were there? I'm willing to bet that any decent company would never let an employee on heavy machinery without some training or direct supervision for a few days until they were confident that you didn't pad your resume.
Also, $15/hr for a 17 year old? You should consider yourself lucky, and if you think that's not enough you're in for a surprise because theres only a handful of people lucky enough to make more than that with the education level you have. Hell, there are people with post secondary education that start at that rate.
Leaving your employer like that on a whim only demonstrates that you have little credibility as an employee, and has little to do with dishonesty in the workplace.