Michi
NO they didn’t can a dog.
Chow Chow is a pickled mixed vegetable thing I think.
Yes, that was a joke, I knew that chow chow is some kind of food. 
Still laughing
Chow-chow.Similar to sour mixed pickles except for the addition of a mustard sauce flavored with spices such as yellow and brown mustard seed tumeric,garlic,cinnamon,cloves,ginger,nutmeg,cayenne,black and white pepper.
From the complete book of pickles and relishes by Leonard Lewis Levinson