falcon,

I realize a 3 or 4 strand barbed wire fence might be standard.
I was responding to the suggestion that you put up one strand at 3.5 feet and wait for someone to get decapitated by it on a 4 wheeler.
Even though I'm sure that was meant as a joke, I didn't want anyone to feel encouraged to actually try something like that.

I tried to address your question. I think you have every right to stop people from trespassing on your property.