Luffy and Chooper
1085/5000
Chopper is the youngest ice man and also the most emotional one. You see the Straw Hats as my own family! When forced to become a member of Foxy in the Davy Back Fight, Chopper was very desperate and cried a lot.
Chopper is so easy to believe, he seems to believe everything he hears and turns into a "prey" for Usopp's story. Chopper believed in Nami's words when she lied to Lola that she was a man, though the truth was too obvious. Chopper also thinks that the Straw Hats are their real team mates, although their looks are nothing like them (see episode 517).
Chopper is so frightened that he forgets the simple truths. An example of this is when one sees the wound, Chopper panics and calls: "Doctor, doctor!", And forget the fact that he is the doctor. Another example is when he and Brook did not hesitate to jump into the water to save Luffy from drowning, while he himself could not swim due to being cursed by Devil Fruit. Finally, all three were saved by the other members of the band.