Your conscious mind is a petty tyrant, narrow and prejudiced, resistant to change, dictatorial, and prone to flatulence--kind of like your dad. There are all sorts of tools arty types can use to trip up this cranky old gent, and one of the best is the blind contour drawing, in which you watch your source but not what your pen is recording. The result is always illuminating. Plus it makes a great excuse. If you do a conventional drawing, and it looks like shit, you can always say “It’s a blind contour drawing! Duh!” and feel superior to your betters.