I\'am a Certified Jerk I'am a Certified Jerk [/ QUOTE ] I spend countless hours studying service manuals, wireing diagams, discriptions of operation, trouble trees, training and test taking. I work till I can't keep my eyes open, bust my knuckles (and my ars), expose myself to chemicals that I damn-well know, can and probably will put me 6-feet under. I'am expected to know and repair one of the worlds most complicated, ever-changeing, prized and deppendend on, items of transportation known to man. I know peoples lives deppend on me and the job I do. I'am a Certified Automotive Technician.