"When switched on for the first time, it was clear that the last user had little understanding of how to store files on the hard disk."
In the early 90's I was helping a high school student (son of a relative) [1] with problems he was having with his Mac Powerbook duo 210 [2].
Noting that he had no files on the desktop or anywhere I said "hmm looks like you don't use this computer much!". To which he replied a bit snottily "You mean I don't use the hard drive. I do use the computer".
[1] He is now a Physician with a high end dermatology practice and several offices. He went to a 7 year MD and undergrad program and graduated first in his class. He always had to appear smarter than the rest as displayed by his comment to me (much older and using computers for quite some time at that point).