I read a fic once where it turned out Filch was Snape's step-father and it was quite sweet. (wish I could remember where I read it, it's lost to some broken computer's hard drive long ago) This drawing reminds me of it, of that feeling that was conveyed of having a stern, but loving father instead of the abusive bully poor Severus had growing up. Very nicely done! (and I really love that the viewer can see it as either familial affection or passion's aftermath) *applause*