Corrected entry: When Danny tries to trigger the vault door, it turns out that the trigger device doesn't have any batteries in it. Linus mocks Danny with the "you lose focus in this game for one second" line. However, since Linus had no idea that Danny was even going to the vault after he got red-flagged in the casino's system then didn't it have to be Linus that forgot to put the batteries in, not Danny? Because there would really be no point in bringing down two trigger devices and Linus would certainly not go to the vault by himself to trigger the vault door without having a means to open it.
MasterOfAll
3rd Sep 2013
Correction: Danny and Rusty were the ones to set up the equipment for the heist. It would be their responsibility to make sure everything was ready for Linus' use.
MasterOfAll