she was on the bed? well that could be a guarding my bed issue.
OR, I know she has bad hips, it could have been a "don't touch me I'm in pain issue".
Or some dogs are not comfortable being 'hugged'..
I would explain to your sister , that since zelda has bad hips, she is sometimes in pain, tho may not show it..so you have to be careful how you physically treat her.
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