Oh.

DJ: Hi, thanks for calling QFM 96, what can I play for you?
Man on Phone: Yeah, man, could you just play some Pink Floyd, On The Turning Away?
DJ: I'll get that right up for ya. What you up to today?
Man on Phone: Aw, you know, just on my way to work...
DJ: Where's work?
Man on Phone: Donating plasma.
DJ: (pause) Um, how much is plasma going for these days?
Man on Phone: $8.50.
DJ: Oh.