The only time I hate squirrels is when I'm on the bike. They are very entertaining in the back yard. A few years ago when I lived along the Mount Vernon Bike Path in VA I had one ride where I hit three of the little suckers. One of them almost sent the bike (and me) into the trees. After that I tried to scare them away as best I could. I found that hissing at them sent them up the trees. I've never experienced the squirrel gut issues mentioned above they usually just sort of crunched or limped off.