the floor's down_button_pressed event doesn't seem to be getting fired

[MatthewFellows]

The floor's down_button_pressed event doesn't seem to be getting fired, or at least the floor.on("down_button_pressed", function(){}) doesn't seem to work...

I never see console logs for Down button pressed on floor: X which seems a little odd to me...
Tested this on a Safari 8.0.2 browser on a Mac on Yosemite - having looked at floors.js I can not for the life of me figure out why up would fire the event, but down not... I'll start throwing some breakpoints in and stepping through...

{
    init: function(elevators, floors) {
        var elevator = elevators[0]; // Let's use the first elevator
        elevator.on("idle", function() {
          if (elevator.destinationQueue.length == 0) {
            elevator.goToFloor(2);
          } else {
            elevator.goToFloor(elevator.destinationQueue[0]);
          }
        });
        elevator.on("floor_button_pressed", function(floorNum) {
            console.log("In Elevator button pressed: " + floorNum);
            elevator.destinationQueue.push(floorNum);
            elevator.checkDestinationQueue();
        });
        var floor = floors[0];
        floor.on("up_button_pressed", function() {
            console.log("Up button pressed on floor: " + floor.floorNum());
            elevator.destinationQueue.push(floor.floorNum());
            elevator.checkDestinationQueue();
        });
        floor.on("down_button_pressed", function() {
            console.log("Down button pressed on floor: " + floor.floorNum());
            elevator.destinationQueue.push(floor.floorNum());
            elevator.checkDestinationQueue();
        });
    },
    update: function(dt, elevators, floors) {
        // We normally don't need to do anything here
    }
}

[MatthewFellows]

Gah - never mind- floor 0 doesn't have a down button and I'm not iterating over the floors /sigh