I definitely don't go snooping around people's data. I'm really just too busy to care. The two cases I highlighted originally, come from people that have no problem with me sharing their stories and they have offered my company statements of recommendation highlighting the details of those cases to use whenever and whereever we want.
We had a problem a few years ago with a company that sent us in a drive from one of their customers. These people were complete jerks too. They called all the time, hounding us about when that drive was going to be finished. Then when we had it done, and it was already paid for and ready to ship they called back wanting us to verify data. There were two large folders and they wanted to make sure the data was good in them. So we had to bring the data back up on the server, and look through it. When I'm verifying data, I'll typically just do a search for JPG files, to give me a good feel. JPG's are fairly fragile, and if they preview ok, then I'm pretty confident the data is fine. I did a search like normal, and scanned down the list. All the previews looked good, and I was just about to close it out when I saw a child in a provocative situation. Then there were many other images that were obviously extremely illegal. I immediately called my lawyer, who in turn notified the police, who then took custody of the data.
The sad part is, the idiots at the other company, who were technically my customer, did a charge back on the credit card, so I lost the money for the recovery.

They were in another state, and it was their customer's hard drive that I was recovering. I stayed in contact with the police department here, and the officer handling the case was flabbergasted that the police in the state where the drive originated were just so blah about the whole case. They just told them to send it back regular mail, and they'd "look into it". Like it was no big deal. I have no idea what ever happened after that.