"a breakfast exchange"
gather 2 agents within 1 block
takes 45m

tell agents:
  Okay, you need to make breakfast for a stranger and hide it
  somewhere public in town.  Do it fast, cause in 30m I will ask
  you where you hid it and tell you where to find yours.

after 30m
ask agents re where:
  Where did you hide your breakfast?
tell agents:
  Go find your breakfast at |otherguy.where|.  Send back any reports.
  Thanks for playing!