Each event is added to the array.
This array can be obtained using the jQuery data method:
$("#element").data('events')
To record all events of a single object in fireBug, simply type:
console.log ( $("#element").data('events') )
And you will get a list of all related events.
Update:
For jQuery 1.8 and above, you should examine the internal jQuery data object:
$("#element").each(function(){console.log($._data(this).events);});
console.log($._data($("#element")[0]).events);