I was night fishing on a lake with my back to a wooded area. I was in a chair with a small lantern beside me with a full moon. I heard a noise and turned to my right to see what was coming out of the woods. I'm thinking it was a raccoon or possum. I saw a humanoid that looked like it was running on all fours with its rump up in the air, running to the water! I froze and slowing pulled my bowie knife out from beside my left leg and had it ready to use if it came near me.