A schnauzer is the first and only dog to have ever bitten me. I was young and at a sitters place. He was laying in his bed and looking at me and I just reached out to pet him and he bit my hand. I can't remember if I was looking into his eyes or not, I wouldn't have realized then that that is a show of aggression. He was a miniature I believe. He drew some blood but it was not a serious bite. I hid it and never told anyone because I was afraid it would cause the dog to get put to sleep.

Not that all schnauzers are biters or anything but I do think they tend to be territorial. He was always really sweet to me before and after that time, I think for some reason my reaching out to him while he was in his bed brought a territorial snap out of him.

Might not be typical at all of the breed though. I remember my best friend's sister had a black and white sheltie that for some reason, just hated me . It was a shocker because I've never had a dog just take a dislike to me personally. She was fine with anyone else but they had to put her in another room when I came over. They had two other shelties who loved me. I just never did figure out why that little female disliked me so.