That was what any real man of integrity would do. He told the player to wait there. Ten minutes literally isn't that much to wait when considering real life wait times. I mean, you've had to wait more than 10 minutes for a friend, right? What kind of a sick of a bitch hears, "Wait here", then proceeds to go downstairs, snoop around and start causing havoc.. Frankly, it's unbecoming and while it may increase the longevity of the time played in game, it does speak plenty about that player in question.