The Broccoli Test

    bravecows mentions the broccoli test; can one member of your favorite pairing tell that the other one wants broccoli when they are separated by half the grocery store, but still in line of sight?

Supernatural
Dean and Sam Winchester would have no problem knowing that the other one wanted broccoli. Sam would resist at first, struggling with whether he ought to buy broccoli for Dean, *knowing* Dean was only getting it because their father told him to eat it. Dean would try to pretend he wasn't shopping for broccoli with his brother, embarrassing both himself and the girl in the next aisle with his poorly timed lies and half-hearted attempts to hit on her using produce.

SGA
Rodney McKay would know everything there was to know about vegetables, and spend half an hour complaining about the debasement of a fine mind, sent shopping instead of Performing Important Research. He would get John's broccoli, though, when John raised his eyebrows just so. John would know before Rodney said anything, just from the expression on Rodney's face that the broccoli was next on the list. Then Rodney would be kidnapped by the strangely familiar stocker in the next aisle and hidden in the store office. He'd signal John using a ham radio in the desk, and John would smash through the office window on a grocery cart to rescue him, thereby alienating that grocery chain forever. But bringing home the ingredients for healthy stir fry that Elizabeth wanted.