Existe algum momento na série Harry Potter em que Filch está realmente sendo legal com alguém?

Filch é visto prestando primeiros socorros básicos a Snape em Harry Potter e a Pedra Filosofal.

Snape and Filch were inside, alone. Snape was holding his robes above his knees. One of his legs was bloody and mangled. Filch was handing Snape bandages.
‘Blasted thing,’ Snape was saying.

E ele é extremamente educado com a nova diretora de Harry Potter e a Ordem da Fênix.

Umbridge was sitting behind the desk, busily scribbling on some of her pink parchment, but she looked up and smiled widely at their entrance.
‘Thank you, Argus,’ she said sweetly.
‘Not at all, Ma’am, not at all,’ said Filch, bowing as low as his rheumatism would permit, and exiting backwards.