Had a dog that was an eternal optimist about skunks...<sigh>...even before that had a skunk stroll into the house through a cat door to the screen porch and an open inner door on a hot night. Heard a noise and went downstairs and came face to face with it as it trundled toward the exit. Fortunately backed off and out of the way before it felt threatened. That was the end of the cat door though.

The worst "pests" are the ones who have no fear or wariness of people.