Here is the original thread for dead grass.
http://www.pets.ca/forum/showthread.php?t=62047
Original picture taken
June 13 update
Gryphon of course--doing his job NEAR the spot.
Today, I stomped his spot once again with my aerating sandals.
All the neighbors point and laugh at me. then I watered with my rain barrel water. I surely hope that by doing this routine every weekend, his spot will NOT be a spot anymore.