Living here in St. Pete, we have always had, literally, dozens of squirrels running all over our property every day for years and years. Almost all of us feed them, and we have the friendliest bunch of semi-pet squirrels you've ever seen.
I've had one that used to get on our screen door, and shift his weight back and forth to make it bang, till we came outside. I could put my hand out on a tree branch he was on, and he would walk out on my arm, right up to my shoulder, and sit there while I fed him.
I'm pretty sure I have told you guys about another one that would walk under my standing dog, and trade kisses with him. And most of them love for you to scratch their heads and ears. We all love squirrels in our neighborhood.