Actually - if I remember correctly, a "natural join" is what you get when using some of the newer join commands like INTERSECT or EXCEPT. There isn't a specific join set specified: instead, the two queries are joined by matching each of the columns up based on their order within the query (so 1st column of 1st query matches up to 1st col of 2nd query, then match up the 2 column #2, then match up 3, etc....)
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Your lack of planning does not constitute an emergency on my part...unless you're my manager...or a director and above...or a really loud-spoken end-user..All right - what was my emergency again?