"Date? What do you mean, date?" it was difficult to pick exactly where GLaDOS was speaking from but that wasn't going to stop her shouting at the Walls and watching the ceiling for any sudden appearance. She was so busy looking above her head, that Barbara didn't immediately notice the other room's occupant.

"...has GLaDOS ever done anything like this before?" Barbara asked, feeling a little rude at not noticing them to begin with.