My landlord is adamant when he says,'Don't feed the squirrels.' Why so? Because, he says, they could bite you. Well, I didn't pay any attention until one day I had my door and screen door open and in comes this squirrel, right into my living room. Scared the crap out of me. Luckily I chased him out. If a squirrel ever gets in your house, you can have one heck of a problem to deal with.
When you feed wild animals, they get dependent on you and can actually attack you if you suddenly stop. It is not a good idea to get anybody dependent on you because if you try to cut back or stop they can get pretty darn mad at you.