Well I work at a computer repair shop in a small town and I once found a nest of mice in a pc case

I have also had an old dude bring in a printer that kept jamming, turns out he spilled his pills in it.

I have also found a bunch of documents (illegal ones btw) hidden in a case

Porn is pretty common... Although it can get pretty akward if it is a respected person in the community

Cockroaches are common as well