Inside the vault, Yen placed all the detonators, but got his hand’s bandage stuck in an inlet. Outside the vault, Ocean and Linus had to open the vault by using the detonators in order to steal the money out of it. But the remote’s batteries died:
Linus: Well, did you check the batteries? You know, you lose focus in this game for one second...
Ocean: I know, somebody gets hurt. You don't hear Yen complaining.
Why did Ocean say, "You don't hear Yen complaining"?