Here is the proofread version of your text, along with a list of errors:
Proofread Version: Mr. Grumpy is a stingy person who does nothing but hoard all of his money like Scrooge from "A Christmas Carol." There is no limit to what he would do in order to save a singular penny. He is even willing to lie to anyone, just like Pinocchio, if they ask him anything about his money. No one gets fooled by his dishonesty, and it just shows what kind of person he is. Mr. Grumpy will always refuse to share even a sliver of his money; the only time he ever shares his money with someone is if someone is in a dream.
List of Errors:
- "A Christmas Carol" needs a period at the end of the sentence instead of a comma.
- "There is no limit as to what he would do" should be "There is no limit to what he would do."
- A comma is needed after "Pinocchio" in "just like Pinocchio if they ask him anything about his money."
- A comma is needed before "and it just shows what kind of person he is."
- The phrase "the only time he ever shares his money with someone is if someone is in a dream" could benefit from a semicolon instead of a comma (though this is more stylistic).
These edits improve the clarity and grammatical correctness of your writing.