A: For the out-of-turn play of Canceled Plans, it works the same way it does in any other situation. If someone plays a Goal, and you want to prevent that play, you can play Canceled Plans right after they have played it, and the Goal goes in the trash instead of into play. Canceled Plans doesn’t specify any particular location the Goal is being played, so it can prevent any play of a Goal, no matter where someone was about to put it down.
It’s the in-turn play that gets complicated. The in-turn instructions for Canceled Plans say “Discard the current Goal/s.” It doesn’t specify where the possible multiple Goals in play might be, so Andy has ruled that this would cause all Goals in play on the table to be discarded, including personal Goals.
This question is also tagged for Bucket List as it is the same as Personal Goal. It is also categorized under Fluxx Expansions, since one might add Canceled Plans from the More Surprises pack into a version with Bucket List.