Mary: "Oh, we put all the M&M's in the tupperware container over there."
Dr. Grumpy: "But there were 2 bags, the PB's and the dark chocolate..."
Mary: "Yeah, we just put them all in it. It's over there."
Dr. Grumpy: "You mixed PB's with dark chocolate? That's sacrilege!"
Mary: "You're a doctor. The PB's are bigger. I'm sure you can tell the difference and pick them out."
Dr. Grumpy: "That's not the point! You shouldn't mix them! The crappy dark chocolate ones will contaminate the PB's just by being in contact with them."
Mary: "Tough. From looking at your butt I don't think you need either."