Despite the trouble they cause, a lot of people still see squirrels as cute, fluffy animals. People even leave food out for squirrels and watch them eat with their cute little paws. On the other hand, others seem to get raging mad, sometimes wielding pellet guns at squirrels who steal from bird feeders or create messes around the house. Whether you think they're cute or a menace, squirrel activity inside your home can be a problem. Squirrels build little nests outside, but eventually, they begin looking for warmer places inside to cozy up, and your attic will seem like a comfy, toasty option.