How to listen for actionContent button click event in View

Hello,
Doing this:
FlexGlobals.topLevelApplication.addEventListener('actionContentClick',showOptions);
Results in calling showOptions() as many times as the view was showed. The handler sticks and each time I enter a view in the creationComplete hander for it I add the same listener over and over again.
How should this be done?
1. FlexGlobals.topLevelApplication is the right object to listen to?
2. I can remove the listener on view deactivate, but I am not sure if that will be called each time the view goes away.
3. Can I check if an object already has a listener and which is it?
Thank you.

Thank you, Tom.
I was complicating things for myself by exposing methods in the main MXML file to add and remove and listen to click events on a button placed in the actionContent, instead of declaring it in MXML for each and adding a listener to it. Views had different actionContent buttons or rather icons for them.
In regards to hasEvenListener, can I also get the method(s) attached to that? Probably not though.

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