I work as a 3D draftsman and this would be very good if it had three more fuctions added to it. (1) it needs tracking, so that you can draw at 90,45,22.5 degrees. (2) object snap, so that the begining of each line will auto snap to the end or mid point of another line. (3) the ability to move lines once drawn from a different view port, this will give it depth. (oh and a delete button)
nice concept, 4/5. It seems like you have left the "ING" off of lots of words... "shoot when they are sleepING" and "nice shootING" are ones that spring to mind...