I bet we've all heard at one time or another "Well when TSHTF I am coming to your house!"
I plan for short term interruptions in society for my wife and I, and no one else. There is no way I would be able to feed/water/shelter all my friends and family that refuse to have even basic necessities at hand.
That said, I doubt I could turn anyone I know away. For this reason I often find myself trying to explain the fragile nature of our society. For example, the strikes in Europe going on right now. If the truckers or refinery workers decided to strike today, how long would it be before the shelves at King Soopers are empty? Maybe a day or two if there is no panic.
I have often thought of creating some buckets with basic food and spices as well as a knife, water treatment, and cooking supplies to give to family members.