Apparently this classic comeback is to be made redundant by Apple.
Apple are reported to be creating a... Shock! Horror! 2 buttoned mouse. Welcome to the 20th century guys! ;)
So I wonder if ardent Apple afficionados will do a "from these cold, dead hands" with their one buttoned mouse as I have seen many arguments over mouse buttons online - and the consensus from the Apple community seemed to be that you couldn't ever possibly usefully use a second button. I seem to use all five of the buttons on my mouse with regularity.