I wish you could chase after Resetti through his tunnels like a mini-game after he yells at you for reseting.
The mini-game would start straight after he finishes yelling at you, you have to quickly run to the open hole he leaves or he will cover up the tunnel. When you get into the tunnel you chase after him and watch out for his pickax swings, rocks and other open tunnels. If you make it to the end Resetti will reward you with a mole themed item. The bonus is that you can keep chasing after Resetti every time after that to get other mole items.
PS: All mole items sell for 2000 bells or if playing Animal Crossing: New Leaf sells at Nookling Junction for 1250 bells and at Re-Tail for 1700 bells.