I am well aware of how the Prophet pbuh treated others. He was the best of character. People would have ran away from him if he wasn't.
As far as neighbors go. There is a Hadith on that
Mujahid reported that a sheep was slaughtered for 'Abdullah ibn 'Amr. He asked his slave, 'Have you given any to our Jewish neighbour? Have you given any to our Jewish neighbour? I heard the Messenger of Allah, may Allah bless him and grant him peace, say, 'Jibril kept on recommending that I treat my neighbours well until I thought that he would order me to treat them as my heirs.'"