This is a very short experience that my grand mother had. My mom told this after I grew up a little. My father bought an MIG flat in 1981 in a locality still under construction in my home town. At that time, that area was just like a jungle. Today it is well developed and posh, and one who had seen it during construction will not be able to believe that this is the same colony which was like a jungle.
So when my father bought the house, that locality was still developing but my family had already shifted. I.e. My mom, dad, grandmother, elder brother and elder sister. I was not born that time. My grandmother was reluctant to move because it was deserted with other nearby houses still under construction. Anyway they all got shifted.
So it was night time and my grandmother was in the kitchen. The kitchen window was open. The tube light in the kitchen was ON, and its light was being spread on the ground outside the window. There were no houses nearby as most of them were still under construction. So it was just plain ground with little sand, bricks, dry grass etc outside.
Now my grandmother was doing something facing the window when she saw a dog walk on the ground. The only source of light was the kitchen tube light that was falling on the dog making his shadow on the other side.
Something my grand mom saw freaked her out and she shouted like hell. My mom who was in the other room came running. My grandmother was bold and so did not face any difficulties telling what she saw. By the time my mother came to the kitchen, the dog had already gone past window so my mom could not see anything.
But my grandmother informed that what passed by the window was a dog but his shadow was of a human!
My mother could not believe and told it could be that due to sand and bricks, the dog's shadow appeared distorted. However, my grand mom retorted that she was wearing her glasses, the light was going very clearly outside the window from the kitchen and hence the dog's shadow was very dark to be mistaken. It was definitely a human shadow formed by a dog's body. There was no other human presence nearby the window as it was night time so no possibility of any other human forming the shadow behind the dog.
Also as the dog moved, the shadow moved with him, so no possibility that it was grandmother's shadow herself.
After this creepy vision, they immediately closed the window.
Now the locality is well developed and we have not encountered any further such experiences in that locality.