I was delivering mail in rural Waldo County, about 5 years ago and saw, what I thought was a big black dog, in a field...then it started to run and bears have a distinctive run...it was a big bear and I had just left a customers yard. The customer and her young granddaughter were in the garden. I turned around to go back and warn her, because it was headed her way... During my 32 years career as a rural carrier, I saw all kinds of wild critters...it was always fun to see wild animals.