I don't have any experience with Schnauzers, Rose. We have had several at the Humane Society here over the last few months. They seem to be sweet dogs from what I've seen. You can find a lot of information about the breed online. If you are going to buy a puppy, please make sure it's from a reputable breeder and not a puppy mill situation at a pet store. You can also check your local animal shelter or a schnauzer rescue if you want to adopt.
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