Before I got Suri I was a frequent flyer at Petsmart, as I was always looking for sales and sometimes just to look because i was so excited to get Suri.
One day I went with my BF, and I turned around the corner and almost busted my head because a lady left a big pile of poo on the floor! I was very upset and luckily I didn't fall. I told the lady she forgot to clean up after her dog and she said it wasn't her dog. I said well than your dog must have sat in it, because she has some hanging out of her rear end.

(white dogs don't hide things very well...haha...) She got embarrassed and left, and the manager made sure to clean it up. The nerve of people sometimes, if you are the only dog in the store than it might be hard to hide the fact it was you.
Anywho, I always make sure to clean up. At the halloween party they had, Suri had to potty and I made sure to clean it up before the helpers had a chance. Its called responsibility.