I love how every evening the dogs are like:

Romeo: Boo! I am the toughest!

Bowie: AHH! No, I am the toughest. Grrrgrrgaheeerrr

Romeo: Oh no! You are the toughest! I am scared! Please don't hurt me!

Romeo is a cannon ball of pure muscle. Bowie is an itty bitty pickle, half his size. You can see him laughing as he pretends to be afraid.