We went on our honeymoon to Toronto about 30 years ago. They had black squirrels that originally came from Ohio in the parks. We bought a couple packets of nuts from vendors to see if we could tempt the squirrels. It didn't take much tempting; they came bounding across the park and climbed us to get to the nuts. I guess it wasn't an original idea. They didn't bring us any presents so it was a one way deal, but they definitely knew the game.