title: Explicit Event add/remove, misunderstood?
body: <p>I've been looking into memory management a lot recently and have been looking at how events are managed, now, I'm seeing the explicit add/remove syntax for the event subscription. </p>
  
  <p>I think it's pretty simple, add/remove just allows me to perform other logic when I subscribe and unsubscribe? Am I getting it, or is there more to it?</p>
  
  <p>Also, while I'm here, any advice / best practices for cleaning up my event handles. </p>