When I was about twelve maybe thirteen years old, I was sitting in my mother's room watching her television lounging. My mother's room has a bathroom adjacent and the door was closed tightly. I started hearing something pounding on the bathroom door like a dog might if trapped. We had two inside dogs and one outside dog at the time so I thought that Bogie, my border collie, had somehow trapped herself in there and was trying to get out.
The pounding on the door was very loud and scared me very badly because I thought that I was alone in the room. I couldn't remember either of the inside dogs coming into the room to be with me. I figured that one of them went to sleep in the bathroom prior to the door being closed and had woke up and wanted out.
I got up to let the dog out of the bathroom because I didn't want her/him to be freaking out locked in there having a puppy coronary. It was very cold near that door, which was very odd considering I live in Texas and it is hotter than dog snot on most days. As I approached the door Bogie (my dog) walked into the room and stopped right next to me at my feet looking at the bathroom door and growling. Realizing that there could not have been anyone else in the bathroom, the dog and I ran like hell into the kitchen where everybody else in the household was helping prepare dinner at the time (I know I was being lazy).
My mother asked me why I had been banging on the door, which means she heard the noise. I told her that I had not and what had happened but she blamed my over active imagination and believed that I was trying to scare my younger brothers, who were looking at me like I had lost my mind. It should be noted that the other inside dog was sitting at my younger brother's feet begging for spaghetti and our outside dog was outside enjoying the warm Texas sunshine. I will admit to nothing but I did enjoy scaring my kid brothers once in awhile.
However this time I had not been trying to scare anyone least of all myself. I still wonder what would have happened if I opened that door because I got a angry vibe from whatever it was on the other side. It wasn't like the green mass with a face that I saw when I was 5 or 6, see Saturday morning cartoons for that story.