When I picked Jet up, yesterday, he went to the van, looked in the open side door and pointed at the seat we put his car seat in, which faces the back of the van and said, "This seat is forwards."
Then he pointed at the bench seat that faces the front of the van, "This seat is backwards. Everyone but Jet sits backwards!" and he laughed and laughed...
I was just impressed that he got the opposite of both.