oh I see what is going on here, now...a conversation between block-of-wood and robo-bro....or rather she hadn't spoken...simply pointed...to a map of THE VAULTS and then to the following....all on cctv....shows how careful this 'addicted to happiness' mob, had to be....go figure:

 

block-of-wood was quite sure that it had to be ICE for some reason...go figure: