[HBP] Why didn't Voldemort Modify Hagrid's Memory?

[Cassandra Wladyslava]

No: HPFGUIDX 190181

First off, I'm sorry if this has already been discussed. In fact, I'd be
surprised if it hasn't been.

I was just listening to HBP (The Stephen Fry Ver.). Voldemort modified
Morphin's memory to make him think he had killed the Riddles and Hokey the
House Elf to make her think she had killed Hephzibah Smith, but didn't
modify Hagrid's memory to make him think he had set Aragog on the
muggle-borns/opened the chamber of secrets.

Any thoughts as to why?

~Cassie~


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