I got to thinking about mines, and thought to myself, "it'd be nice if I had a claymore here". Now, for those saying, why dont you just use mines? Claymores are a little more versatile. It fires only in a 60 degree arc. So you could set up a claymore, hide right behind and be safe. It makes it ideal for booby trapping certain areas.
Finally, I always get a little kick out of the instructions for them. The "Front Toward Enemy". A link with pictures http://en.wikipedia.org/wiki/M18_Claymore_anti-personnel_mine