When I play my game, I tend to micromanage. A lot. My sims usually have their interaction queues filled. As a result, when things happen like the sink breaking or the phone ringing, I have to cancel all actions and queue them all up again if I wanted them to answer the phone before taking their shower but after eating.
In that case, wouldn't be nice if we could reorder the interaction queue? We could simply drag the action icon to the proper spot in the queue. The only actions we wouldn't be able to reorder are actions that the sim is doing or in the process of doing.