This was when i was around 12.

I was walking back up my driveway after bringing the garbage cans out to the road late at night and I saw this … dark shadowy creature walking down the driveway towards me.

Then It started running towards me.

I let out the most primal guttural scream ive ever heard and that Dog slipped and fell mid run trying to turn and run the other way from me

I assume it was a dog. Ran inside real quick after.