They've really taken a turn back to crazy town. Imogen really isn't sure if the old man is telling a joke or if he's being serious, and that's odd because she usually has a decent bullshit detector (mainly because she's so full of bullshit herself).

"That's...nice," she finally manages, and she's already grabbing her things to go. Look at the time, right? How it flies when you're talking to madmen with weird taste in music.