Raccoon Goon
Tom Nook's Bodyguard
Do you have inclines leading there? Not having one may be the only thing stopping them. I have a ramp leading to a 3rd layer cliff where my home is, and one day I start up the game and exit my house to find my uchi just wondering around in my back yard.
Nope, no incline whatsoever. The only way you can get to my house is by using a ladder.
