Question: I once heard that there's a shell somewhere in the movie that has a profanity written on it. Is this true?
Question: When Charlie brings a pizza to the puppies, and they shout, "Charlie", how do they know what his name is?
Answer: Charlie talks to Anne Marie about them so my guess is that he has visited the puppies and the female dog before maybe even a few times.
Answer: Charlie may have visited the puppies before so they know who he is.
Answer: Yet another Disney urban legend.
Jazetopher