we have a houseguest who last saw Odin when he was two or three months old; he was so excited that he literally knocked her flat on her back. She's over six feet tall.
I'm 100% convinced he remembers every single person who has ever pet him. If he sees anyone who's pet him even for a moment again, he goes absolute Sickos Mode with joy and starts leaping at them for attention
he doesn't react this way to, for example, the cleaning lady, who doesn't touch dogs as a religious matter. he regards her politely and doesn't try to approach
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