I never have but there was a guy using one 30 yards from my stand opening morning of gun season.(private property) I didn't run him off because I'm just a kid. I went down the road and took a nap. My cousin (who was pretty mad about 2 trespasser at his stand spot the same morning) asked him to leave. The guy under my stand said he saw 3 or 4 deer. I imagine the guy was fairly comfortable because he was there for a while.