Saw this on FB this morning and it made me laugh. Here is the original cartoon by Jim Benton: http://www.neatorama.com/2013/04/09/The-Passive-Aggressive-Raven/
a 10 foot wide [image-11572] wall. a 4 foot tall black raven is in front of and -4 feet to the right of and -6.8 feet above the wall. camera light is black. ambient light is ghost white. a light is 10 feet above and 10 feet in front of the wall.