Two blondes are wandering through a field one day when they stumble upon a set of tracks. "Ooh, I know what these are," says the first blonde, "these are bear tracks." "No they're not silly," retorts the other, "they're moose tracks."
"You are wrong," says the first blonde. "I saw these in a book when I was younger and they are definately bear tracks."
"I don't think so my dear, I saw a programme about Moose last week, and this is what their tracks look like" said the second blonde, beginning to become angry.
They were still arguing when the train hit them.