Depends on the context, because this has happened to me before…. three times, each with different situations and different responses on my part.
One situation was a friend of mine who was having a nervous breakdown at 4 in the morning. I responded with open arms.
The second situation was a bunch of police officers with submachine guns who proceeded to ask me if my neighbors were home. I told them I didn’t know and went back inside.
The third situation was a tall, muscular bald guy who was peering in the peephole of my door. He had a heavy chain in his pocket. I camped out behind the door with my 12 gauge until he finally left.
So as you can see, it depends on the context. I am always certain to assess a situation before I respond to it. In case of potential home invasion, I always have an effective firearm within reach. In case of a friend in need, I never hesitate to get up to help them. And in case of the fuzz showing up, I’m prepared to help them with what they need. or ask for a warrant.