In a nutshell:
Supposed dog lover: “I love dogs! Dogs are awesome! Dogs are the best! Look at me – I’m browsing through the dog section at PetSmart! OMG THAT DOG JUST GROWLED AT ME. STUPID DOG!! PUT AN ELECTRIC COLLAR ON IT!”
I don’t know how else to describe the situation that happened. Sure, there are a lot of irresponsible owners out there, but for the sake of defending my dog, she’s growling at you because you’re in her space, and she doesn’t like it. I don’t expect you to put an ELECTRIC COLLAR on me if you get in my space and my face clearly shows that I don’t like you there.
And for the kids running around at PetSmart:
PLEASE STOP TRYING TO PET EVERY DOG YOU SEE. And don’t give me this surprised look that my dog tries to nip at you because you run up to her in a high-pitched voice with your hand outstretched.
But I do apologize that she does that. It’s in her genes to be overprotective, but I take it on myself to try to reign it in. I’ve got a long way to go if I want to do anything social with her.