i think everyone tastes a little bit of razor blade with there hand in some part, first hand experience, my left hand has a scar to prove it. one time i was making a small model car, and i was trying to cut somthing, it was a dull blade, it slipped, cut a spot on my hand open you know the rest. this was in the begining when i was starting, i was about 14 15, my experiences with blades, be carful! if its dull, throw it away!! it may not be sharp enough to cut styrene plastic with glue on it, but it WILL be sharp enough to cut your hands easy... XD
thats what i have learned, i guess i have learned how to use filler and such, Bondo instead of Squadron puddy, i learned that from watching scale model addict, i have learned all other sorts of stuff, some things i learned the hard way! some things i came up with, like my acrylic weathering solution i made it myself.