You can not lose the key players in the drama on the battlefield, even if a few can be lost quite easily by making the wrong decisions elsewhere. (theguardian.com)
Tip: Read the rental agreement for details about the key exchange and note whether there's an extra charge for lost keys. (travelinsurancereview.net)
I recommend a lock with a combination code, rather than a key so you don't have to worry about losing your key. (thesavvyglobetrotter.com)