Once in a while, though very rarely, Sierra will complain of being hungry after she is tucked in bed with lights out. Since this is not a frequent thing, I will occasionally let her have a small snack, such as goldfish.
On one of these occasions recently, she had dropped one of her goldfish crackers and was trying to find it and asked Callie to help her. I came in the room about this time to see Callie searching on the floor until she found Sierra's stuffed Nemo. She handed it to Sierra who gave her a funny look. I quickly explained that Sierra had lost her "goldfish" as in cracker, not her "clown fish" as in Nemo.