A social guest or licensee occupying your premises with your implied or express consent is still owed a reasonable duty of care. While each states tort laws are a little different, there are a few things you should be doing to protect yourself. First, putting up signs is a great idea especially in areas where there may be an unsafe or dangerous condition. Even with signs, if you have an "inherently dangerous" condition present that you knew of yet failed to take adequate measures to repair, you may be liable for injuries sustained even if you did post signs (especially in comparative negligence states like NY which do not completely cut off liability even when the guest is negligent). If you have a dog that has attacked guests before or has a propensity to snip, if you have a crumbling stoop, step or walkway, or maintain any other inherently dangerous condition like live wires or boards with rusty nails sticking up, you may very well be liable for your guests injury. This is especially true when you have minors that are unaccompanied by their parents or legal guardian.Is that protecting it from a liability sense, if someone gets hurt? I have a couple posted that just say enter at own risk. Owner not responsible for injuries, blah blah blah. If it is protecting it from vandalism, I have a security camera set up on the house anyway, but for more than 20 years we have had nothing damaged or vandalized, except we had a condom placed on our witches broom one time.