I had my first floor squeaker encounter early one morning, sitting on my living room couch while I was recovering from back surgery. I had staples in my low back, and laying down was painful with one of the staples already partially popping out. I had to sleep sitting straight up the first couple of nights.
It was early in the morning and I was watching TV (about 12 feet in front of me) very quietly. From where I was sitting, right of the TV led to the hallway heading towards our bedrooms. I suddenly heard the floor squeaking, sounding like it was coming from near our bedroom at very end of the hallway. Our floor was carpeted and didn't squeak and I was over 200lbs at that time. It was moving with purpose, 4 more steps and I felt it cleared the hall, and saw it wasn't my wife. Two more floor squeaks and I felt this invisible heavyweight spirit just passed in front of the TV, and was heading to the opposite side of the couch I was sitting on. My heart was pounding and 3 or 4 more quick loud squeaks, and it stopped directly behind me on the couch, over my right shoulder.
I quickly snapped my head back, looking upwards to see nothing behind me. I know it saw the fear or surprise in my face, and it knew it scared the crap out of me. While it was very noisy coming towards me, it made no noise walking away from me, or however it left. And I just sat there, and did nothing. I told my wife about the floor squeaker when she got up. She thought maybe the pain medication was messing with my brain. I explained to her I had already stopped taking the pain pills as they did nothing for me, and I'm not a pill taker. I was also wide awake. This encounter was at the same home as the mirrored hallway. (Typed and edited by wife)