I strongly recommend following the additional links on that page to other squirrel-related stories, including this one on the use of fake snakes to keep squirrels away from commercial nut trees, which has the wonderful sentence:
Although some members of the public are said to have been "frightened" by the snakes, Dartington Hall said it was better than trapping or shooting them.
In the interest of full disclosure JJV obtained this link from National Review's Corner blog - the focus of right-wing banality in the modern blogosphere. Peruse it if you must but don't say I didn't warn you.
This also reminds me of the time I was accosted by two squirrels in Boston's Public Garden as I sat minding my own business on a bench. One approached me from the front while I swear the other started circling around behind me. I actually got up and went to another bench. Having now learned what they are capable of, I am glad I did.