I have Opossums all the time. They're nocturnal and love to dine on the fruits and veggies in the backyard. Cookie, (aka The Cook, our spoiled, but deservedly so by my measure, Wheaten Terrier), loves to tree them or corner them in the yard. They are, by any standard, ugly. When treed they snarl with huge bared teeth, black beady eyes staring back at you from a long snouted skull of a head. On the ground they tend to play 'possum', laying still and silent but keeping this evil snarl on their lips with their teeth exposed, reflecting in the beam of a flashlight. I have read of people who keep Opossums as pets, but I rank those those people up there with the Cat Lady living down the block in the dark, unkept house, the house with the paint peeling off the front porch.
The Cook lookin' for 'possums.
Gary
PS- Opossums are more stupid than mean. Often, their inherit stupidity short-circuits an otherwise easy retreat, rendering nighttime confrontations inevitable. So now you have to deal with this skull-snarling, semi-hairless, 30+ pound creature who refuses to escape. A real pita. The Opossums around here get to be the size of a smallish, medium-size dog. We also have raccoons who fish for the Koi and damage the swing-sets and backyard toys when they play with them.
G