Alrighty, this is pretty funny.
I've been signed up for training for AutoCAD. So, yesterday, the training fellow went over the difference between Paper Space and Model Space. And how to use layers. And draw lines. And use the mouse. And use the 'special' cup holder that comes with any desktop computer. (Maybe I exaggerate a teensy bit.)
As to why I find this amusing, it might help if you know that I have been working in AutoCAD for over 10 years, and may have seen this stuff before.
On the other hand, I am picking up a trick or two regarding some additions to the program that are pretty cool.
On the other other hand, he just said "I always get this wrong sometimes." Heh.