Now that you can buy Dell products off the shelf in stores such as Staples, I doubt that they have you sign anything other than the charge slip.
Wondering how many Trojan Horse attacks out of Amnkokgang College, Kim Il Sung University, KPA training centers (cyber warfare) have been unleashed on ROK military systems in the South, including US Forces Korea computer systems—using these Dells and others. Would be interesting to note indeed.