There is a tiny splatter of blood on my ceiling when I wake up. I am alive and there has been no murder in the room. Also, no one has tricked me.
What can be a logical explanation of the splatter?
Its my own blood. A mosquito bit me last night. It then flew away and sat on the ceiling. I got up and killed it by swatting it. Thus, the tiny splatter is from my own blood mixed with mosquitoes blood.
