This is Melvin. Melvin really likes cat food. Almost every night, sometime between nine and eleven, Melvin ventures up onto our porch to see if the cats have left him any food. If so, he proceeds to tip the bowl over and eat every last crumb. The process is typically very noisy, and takes about 20 minutes. If I shoo him away, he comes back within a few minutes. We suspect that Melvin is the same possum we trapped and removed from the crawl space under our house last summer. Sometimes, he just stares at me when I open the door and tell him to run along!