I have what I believe to be an opossum known locally as a possum visiting my crawl space at between 1:30 and 3:30 AM on a regular basis and making his presence known with sounds like a yard rake against the floor. I think he wants in. I am going to try a trap before
I resort to the option that was under serious consideration last nite. 12 guage home defense rounds thru the floor. Sleep deprivation can lead to poor choices.