As relayed to me by my father, who heard the whole thing go down, when my John threw a bucket off the pier into the murky river:
Daddy: John, you know you are not supposed to do that, now jump in and go get it.
John, age 5: No, I can't Daddy, I can't, I am scary, I am scary!! (this is actually what he says when he means scared)
Daddy: You threw it in, you go get it. There is nothing to be afraid of.
John: I scary Daddy! I scary of the jellyfish!
Enter Daniel, age 4: He's not scared of the jellyfish. He's scared of the sharks.