@679,634
That's where it's a parlor trick and not drawing. Investigating or getting results; purposeful. Maybe there's the mental stimulation, but direct drawing from actual observation leads to better hand eye coordination.
If the take is good modernist...
I remember this guy coming into a grade school art class pretending to be Leonardo di vinci. He dressed the part and then wrote and drew everything upside and backwards. So the class basically lined up and had him draw circus and jungle animals upside down and backwards based out of each students name. Marc Brown (Arthur) was a lot more interesting but for some reason we had these left over hippies coming into our school for stuff like this.