Question on SSK2 listen() function

Hi,

I’m not sure if this is the correct forum to post, but anyway, Ed, if you read this, I have a quick question:

If I use a listen() to attached a listener on a display object,  is it mandatory to call ignore() when the scene exits and hence all display objs removed?  Yes, all my display objects are in the scene’s view and using composer.

Thanks!

Santi