barbed wire and a tree

Call me crazy, but if you really don’t want people trespassing on your property, then it’s probably not a good idea to put your barbed wire fence right next to a tree. I saw just this site driving down Finley Road in Lombard at Ken-Loch Golf Links. I suppose the barbed wire serves as a more symbolic message of “don’t think about trespassing even though you could climb a tree and easily jump over our barbed wire”.