You can blame the header comment about "Plotting the demise of a certain money lending racoon."
I can see it now...
Tom Nook, dazed and confused after having a little too much punch at last nights party and passing out from acid indigestion, awakens in a darkened room strapped to a conveyor belt. Slowly the lights raise and a rosey cheeked, orange nosed face obscured by shadows peers at him through the darkness.
"Good morning Mr. Nook, did you sleep well?"
"What's going on here?" Nook asks, straining with great futility against his restraints.
"It's simple Mr. Nook, time and time again you have cheated and exploited me, well no more, now it's time for vengeance."
"Wait! We can work something out!" Nook protests loudly, still struggling.
"No Mr. Nook, the time for deals is past, you could have been generous but no, game after game I am in your debt. This will be the last payment I ever make to you, a payment of pain!"
Suddenly the conveyor belt begins to move and the lights raise, revealing the terrifying visage of a massive death engine constructed from ramshackle parts gathered from dig after dig. Its operation is simple, the conveyor belt moves and slowly brings the restrained Mr. Nook to the mouth of the machine, which will twist and contort him until finally he is squashed into the mechanical, twitching form of a Gyroid, imprisoned for all eternity.
"A fitting fate Mr. Nook, I have an excellent place on my mantle piece JUST FOR YOU! MWA HA HA HA HA!"
...okay I might have gone a little off the handle there.