Is anyone even likely to be curious enough to look?

Well, can only speak for me, but first thing I do.
I mean, you can never know which administrative scandal you might uncover...
I stop the moment I find private stuff, though.
Had that three or four times already, the only case I was considering doing something about it was a completely unsecured and unerased phone still containing a bunch of business emails that clearly were sensitive or even confidential stuff.
I just told the seller how he screwed up here, instead of making a bigger fuss out of it.