JKB, isnt it sad, that you have to define "no trespassing" for it to be valid?

I hope I didnt come across as making fun of your sign reference.

Here in Missouri, all you have to do is paint corner posts, or any post that is a boundary marker, the color purple.That is a legally binding no trespassing marker.

Give a man a fish, and he will eat for a day. Teach a man to fish and he will sit in a boat and drink beer.