A blog of the Freer Family's adventures and misadventures emigrating to Flinders Island, Tasmania, Australia, and settling there.
Years ago I had a teen-aged possum come in by the dog/cat door. Got onto it by the reaction of the cat - scared and hissing. I finally managed to corner it in a bathroom. Then I had to shut doors, block things off, and open a back door before herding the possum to the door and out. Keeping the cat from trying to climb up to the top of my head was a bigger problem. Mine was a teenager just kicked out by mom and looking for food and a safe hole. I don't know what would have happened if it had been his mom!
I haven't found this one. But I suspect - by the evidence - it also a small one. If it picks on my cats I will introduce it extreme prejudice - the dogs.
if there's attic access look up there. Possums tend to love high places. That's presuming you mean the same thing by opossum that I do *remembers the crayfish that are really lobsters...*