The best kind of Engineer is the one that can admit he make's the odd mistake cause any Engineer that has never made one is a liar and a Danger to all!!!!!, But working in the hangar helps you learn all the ins and outs of the Aircraft, Which can only be good for you. And working on the Line helps you think on your feet (I prefer the Line, a diffrent challange everyday) Being able to listen to other people and admit that you dont know it all.