A few years back I was at Mudchute Farm (one of those "inner city" farms that teach kids where our food comes from). I overheard a woman explaining to her child that the animal she was looking at was a goat, how we can get milk from goats, and several other facts about goats. Then when she finished one of the staff turned to her and said "Yes, everything you said about goats is true, but that is a sheep!"