Having people use your property without permission is always frustrating. If you've got a friendly relationship with your neighbours, it may not be out of the ordinary for you to share your garden space with them - assuming they extend the same courtesy to you. Perhaps one house on the street has a pool they don't mind neighbours using every once in a while, or maybe someone else has a fruit tree they've agreed can be picked by those who will use the produce more than they will. But in every