I do it. If they don't like it they throw me out. If it looks like they will shoot at me, I don't.
See, that's the thing. Laws vary by state, and sometimes quite a bit. In Texas, Criminal Tresspassing during the nightime is an offense where lethal force is authorized. It is specificially mentioned in the deadly force statutes. No need to warn, no need to fire a warning shot, no need to ask that person to leave. It truly is a shoot first and ask questions later type of law. And you know what, as a property owner in Texas, I fully support that law.
See, the thing is, if you come around my house poking around, I'm not going to ask you to leave. I probably won't even let you know you are about to get shot.
See, I grew up different than you yank's up North. If I wanted to fish in a neighbor's pond or use somebody else's property, I asked permission, promised not to leave any trash, and promised not to disturb the livestock. If you didn't leave the area better than you found it and if you didn't ask permission, you weren't welcome back. We knew that at 8 years old.
Hard to believe that a bunch of adults can't understand the same thing.