The correct correction for sniffing, does not leave chunks missing from the sniffer.
Normally you let a dog do a quick greeting, and then move along.
Both dogs on lead, and one wearing a service vest. Yes, I would have payed attention to the growl, even with a vest on. But I know all to well about fake service dogs.
It is our responsibility to teach our dogs correct manners, or in the least warn others. If our dog is not dog friendly.
If I just stand there saying nothing , and don't move a dog aggressive dog away. I would be at fault. I hold others to the same standards.
I worked very hard with my adopted vizsla Ranger. He would take around 10 minutes to warm up to another dog. His first reaction to a dog coming straight up to him, was a low grrrr. We went to pet stores, and outside of dog parks 3-4 days a week to change his reaction. I was not going to let him take a CGC test, unless he could get past the grrr. And his grrr was barely audible, with no snapping, or teeth showing. I in no way compare passing a CGC test, to a service dog.
One of the top complaints, of owners needing medical alert dogs. Is fake service dogs in stores. They bark, snap, and try to go after the working dog.
That dog is a disgrace to service dogs, and so is it's owner for putting the vest on it.
My reply does not mean I disagree with Starrpaths post.
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.