My first reaction to the title of your thread was, Hey! I'm a PetSmart shopper! Okay, I know, you didn't mean ME personally.
Sounds like a bad situation. I've never seen that in my PetSmart.
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226