I couldn't see a use for the corkscrew either. Then I was in the desert one hot summer.

There was a young woman and two guys nearby in the primitive campground. There was something wrong with their car and they didn't have much to camp with. The guys had a blue tarp and about twenty feet of clothesline rope, and they couldn't figure out how to make a sun shade with them. There were two raggedy small tree/shrubs in their campsite, but too far apart to use the rope. The woman comes back and stands watching them, hands on her hips. She looks over at me and rolls her eyes. She marches up to them, picks up the rope and demands her brother's SAK. She pulls up the corkscrew, screws it into the trunk of the nearest shrub, ties one end of the rope to it, stretches it over to the car, and ties it to the inside of the car door. Then she mimes putting the tarp over the rope.

Corkscrew = anchor, when you haven't got an eyebolt handy.

Sue