We used to get a couple around final-assignment-handing-in-time. Kid tells their teacher that the college network is useless, always losing files, always getting hacked, etc. And that's why his assignment isn't ready - it was there this morning and now all his files have disappeared.
You'd think an IT student would know better, and might have heard of things like system logs, undelete functions, and backups.
Kid comes, with teacher in tow, to us in IT.
"Okay, all your files were deleted <clickety click> within a couple of seconds of each other, this morning. By <clickety> somebody logged-in as you. Hang-on... from <clickety> the machine that you've been sitting at all morning.
"But not to worry. Just a quick <clickety-click> and, presto, they're back again. Quite a few pictures and MP3s, and not too many Word documents by the looks of it.,
"So, which one is your final assignment? I can print it off in here to save you the trouble...".
Took 'em a couple of years to learn, but learn they did.