"....the candy factory's mechanics started giving him the cold shoulder...."
Their own fault for thinking no-one will notice misuse of a work PC, I guess. I've never wrapped my head around those who use them for any personal stuff.
If I do need to do some personal bits at work, say on my lunch break, I bring in my own laptop in. Either using my phone as a bluetooth hotspot or the visitor WiFi (we're allowed to use it) although naturally am very judicious about what websites I'd visit!
Workplace had someone sacked a few years back for browsing all sorts of "niche" images and videos on their work laptop while WFH. The content was described as "effectively illegal" which led to a lot of speculation....!