So, we actually saw this in the Stockyards. I was so intrigued and mad I didn't talk to the guy that I googled "rat on cat on dog".
http://thebottomline.as.ucsb.edu/2008/05/the-story-behind-sb%E2%80%99s-dog-cat-and-rat-man-by-emilia-dellemonico
Full story followed by comment:

He's also on youtube.
http://thebottomline.as.ucsb.edu/2008/05/the-story-behind-sb%E2%80%99s-dog-cat-and-rat-man-by-emilia-dellemonico
Full story followed by comment:
quote:
I wanna thank you all for all your beautiful comments, and for your donations. I am NOT homeless, because of the donations. My animals go to the Vet.every 3 months for check-ups.
Some people may say I or my animals are on drugs, but we indeed are not. If I were, I wouldn’t have a place to live or my animals, as they would’ve been taken away upon any arrest. As of now, I am almost in Dallas/Fort Worth, TX. If you would like to see me I will be in the Dallas Stockyards, or downtown Dallas. Sincerely Dog Cat Rat Man (Greg Pike)11/11/09.

He's also on youtube.