[Pharo-project] FileReference should throw error when deleting unexisting files?

So if we now do: 'afileThatDoesntExist' asFileReference delete I get a PrimitiveFailed. If this is what we want, can I add: FileReference >> deleteIfExists self exists ifTrue: [ self delete] or something like that? because lots of places (tearDown of tests) I want to remove crao which may or may not exist... thanks -- Mariano http://marianopeck.wordpress.com