I had forgotten to mention a bonding moment in my last story. Forgive the brief one shot, but I do love the idea of Kreacher and Filch meeting each other.
Kreacher and the Filch
Filch helped to round up the mystical creatures when he suddenly noticed a very handsome looking house elf. He always thought them to be well below his station, but this one was particularly special.
The house elf also noted the strange human. He could sense he was a lousy squib, but for a human he seemed very likeable.
"You! Who do you belong too," Filch asked.
"Kreacher is from the House of Black," he replied.
"That's a nice house," he replied.
"For a squib, you don't seem as vulgar as most."
"Aye." There was silence for a while.
"My master may take a while to come to pick me up. Should we exchange housekeeping secrets?"
"All right," mumbled Filch attempting to sound reluctant.
Though their friendship was brief, the two of the most crankiest characters in the Harry Potter series overcame their difference and developed such a powerful bond. Once the last Voldermort War was over, they reunited after Harry relinquished Kreacher's role at the House of Black.
Now Kreacher and Filch spend their time as the owners of their new enterprise Wizarding Janitorial Services. They then lived happily ever after.