Some people fail to understand that their behavior towards others affects how others eventually behave towards them. In other words, they don't understand that what goes around comes around – You can't expect people to be nice to you, or to help you out, when you refuse to do the same for them. This rule is a key element when it comes to a neighborly relationship. Neighbors often seek each other's help, but if one refuses to help others, there is no reason for others to help them in return, whi…