Big Bus, Little Bus

Mack LOVES anything with wheels that moves. He likes motorcyles, cars, trucks and even giant excavators (yes, I now know what that is). However, he does have a special fondness for buses. Big buses, little buses, yellow buses or even purple buses (he REALLY liked the purple one but it wasn't ours and we couldn't bring it home). Given a choice between a really cool car with flames and a plain yellow bus...always the bus. The bus must always be empty. Don't try taking a Little People or Tad the LeapFrog for a ride...he won't have it! Hmmm....I wonder what this says about him.