Books in the Chicken and Egg series

It's a sweltering day! Chicken and Egg decide some ice cream would be deee-lightful. But when they arrive at Big Scoops ice cream parlor, they can't decide who should go in first: Chicken or Egg? "After you."..."No. I insist. After you." How will they ever decide? See just how silly things can get when politeness goes horribly, horribly wrong!