When I first saw the discussion "Signs." I started picturing funny signs. It turned out that discussion wasn't about that type of signs at all, and it's a lot more serious. However, we can use some humor too.
If you drive north on U.S. Highway 41, it ends a few miles beyond the town of Copper Harbor, in the Upper Peninsula of Michigan. While hwy. 41 ends there, the paved road continues on for another few miles, and then becomes unpaved. If you choose to ignore the sign that's posted there, you had best be in an amphibious vehicle. That's lake superior in front of you.
