Removing unknown event handlers - through Reflection?

Question

Hello, Does anybody know if there is ANY way to either get a reference to or just remove event handlers that you didn't declare yourself? (I am writing a plugin, but want to change the functionality of some buttons etc.) I've gathered that this is at least difficult if not impossible from other posts, but if anyone has a horrendous hack I'd like to hear it. Alternatively, I wondered if it would be possible to identify an event handler through Reflection in order to remove it. Does anybody have any thoughts on this? Thanks very much, Keiron