回複：又是"朋友"的問題,這關您的事嗎?

I don't think that most of dogs are friendly, at least to me. I was bitten by dogs, large or small, several times in China or US. I was afraid of dogs since my childhood after a dog come to my house and bit me and tried my best to keep several yards away from them. Even though, some dogs just come to me/jump to me and bite.

What's the reason?