Flex :: Blazeds - RemoteObject - Handling Multiple Requests?

I have a couple of remote object methods that I want to respond to in different ways depending on the context, but I'd rather not set up a bunch of different RemoteObject aliases.Some background: Let's say I have an admin application that displays sales stats in different ways. The remote method looks like:

<mx:RemoteObject id="rpt" destination="AMFServer">
<mx:method name="getSalesStats" fault="getSalesStatsFault(event)"
result = "getSalesStatsSuccess(event)" />[code]........

The getSalesStats method takes an employee ID and a sales type as its arguments. You'd call it like:

rpt.getSalesStats(120, "peanuts");
public function getSalesStatsSuccess(e:ResultEvent):void {
salesdata:ArrayCollection = e.result.rows as ArrayCollection;[code]......

I'd like to pass something through the remote method to the responding function, like:

rpt.getSalesStats(120, "peanuts", "clicked button one");

but that of course throws an error because the server doesn't want that last argument.