Yeah, they'll come into your attic and poop all over (smile).
Usually I throw unwanted scraps like hopefully-lethal-to-squirrels peanut butter and stale bread at the treeline which is about fifty yards across the lawn, on the theory that the rodents will learn to look for food there and stay away from the birdfeeder and house - it hasn't saved the feeder, but so far there aren't any squirrels pooping in the attic.......