I bet ORD can't wait for Emirates to start flying there, the 2nd busiest airport in the world.
A busy ground controller will spit out rapid fire taxi instructions to numerous aircraft, and each is expected to respond and move in turn. If a pilot misses a clearance, or fails to accurately read it back right away, they will be told to taxi to the "penalty box" and to sit and wait for the controller to have time to re-issue a clearance. As busy as O'Hare always is, this sit is truly a penalty.
Be ready for 6-7 taxiway clearances at a time and let's not have the amateurs start with that is too many to handle. If it is indeed too much please bid away from ORD and save EK the embarrassment.