Possible Clues:

• For some, it passes as a signature
• Son caught naked left barely legible note
• Poorly written words
• Handwriting on a prescription, perhaps
• Second toady produces pen, hastily
• Beginning to sign, go very slowly — it’s illegible
• Dash off, seeing son move slowly
• Ultimately careless stroke -- that's hard to read
• Small stroke producing messy handwriting
• Many a doctor's handwriting