We have a 10 YO, 80 lb Rotten Shepherd, more Rott than Shep. She was brought home by my son off the street, nine years ago. We had her spayed soon after. She was a handful like any dog that size and weight, but mellowed with age.
She's great around the grandkids, but that doesn't mean I don't keep an eye on her. I rough house with her on occasion, and she can draw blood when it gets too rambunctious.
I grew up around my sister and her being a dog Groomer brought All kinds with all kinds of Trouble ! .
You just can’t trust them.
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I haven’t had pets.