Possible Clues:

• Messy drawing, possibly small fawn?
• Untidy drawing
• Write quickly seeing son move like a baby
• It may be difficult to make out Schubert's original slow movement
• Write illegibly as a result of s-stroke
• Letters you can't read
• Careless, hasty writing
• Squirm after son's bad handwriting
• Dash off to see son perform in pool?
• Hard-to-read signature