THIS! Plus I always thought there’d be more to Mrs. Norris— well there is but I won’t spoil it for those who haven’t accessed Pottermore but still, I thought it’d be more than that— like she was his lover before then something happened, transfiguration gone wrong perhaps or she was trying to become an animagus but got stuck in her animal form. I dunno… I just feel bad for Filch. The Wizarding World doesn’t really care much for Squibs and he, like anyone else, just wanted to fit in.
Meh, now I feel bad for treating Filch badly… =/