How unlikely would it be to find a chipmunk in the cupboard? I've always thought chipmunks were fairly timid little creatures, but the last time I went for a hike they were everywhere. They were acting more like squirrels than chipmunks. A few years ago we were renovating our house, (not done yet), and before our home was clad in siding, we had a few squirrels taking the opportunity to venture in and try to make a nest. I have yet to see a chipmunk indoors, except for in my imagination.