Yes, that's precisely what I mean. To take his example, if I carelessly left my laptop in a Starbucks, I have not given anyone the right to use, transport or o

Yes, that's precisely what I mean. To take his example, if I carelessly left my laptop in a Starbucks, I have not given anyone the right to use, transport or otherwise inspect my laptop. I can assume some right to privacy over the contents of it. But if I gave my laptop to a company that specializes in transporting laptops between Starbucks locations on behalf of patrons, one can pretty much assume (given today's contract binding society) that they have some clause in the contract between us that says that they are not responsible maintaining the content of the laptop, and can at their discretion open it up and inspect the contents to be sure that they are not the facilitator in transporting illegal or "bad" data (malware source code, child porn or terrorist manifestos, etc). They don't have the explicit right to open it just because, but in giving it to them I've given them the right to do so.