Is good to share, however if they took your good will for granted then is time to take action. Talking to the neighbour while they are picking the fruit would be good since they are doing it on your territory, and you have the bargain right. If the neighbour is good natured they will understand your concern right away, but if they are the bully type then talking won't result in much difference. The kind neighour: Let them take half of the fruit, and you both can share the tree, which is good for maintain a good relationship. The bully neighour: Build a fence, have a sign, make the fruit untouchable. You like to share with them but they just make your backyard their home, don't let them take your kindness for granted. Hope your neighbour is the kind type, and you both can enjoy the fruit of friendship.Another person with the right solution which is of course the simple one. Just get some nerve and tell him how I feel. Will do it over the weekend. It's is absolutely the only way to live happily in this house. Much cheaper than getting a fence.

