I can understand it in a campground but when it's your own yard you really got to take offense. We live next to a city park that is popular with tourist and locals for it's waterfall that cascade from under the bluff that feeds the creek that goes through our yard. Some people assume that the entire creek is part of the park even though they have to pass a sign that says Private Property and walk by the front of the house while I am standing on my porch watching them. I even had a group of guys jogging by on the main road veer up my driveway and drink out of the creek. I hesitated to say anything hoping they all would get a case of Giardia for blatantly trespassing on my property. I have even had people ask to use the bathroom. No, please go down to the quick trip