I once heard an excellent spoof of this song, I don't know who did it but it was something like......
I'm an Adman, I know what I'm saying,
you're hair's getting grey and your teeth are decayin'
you're getting old & decrepit, etc. etc.
And you tell me over & over & over again my freind,
that you don't believe, you're on the eve of destruction.
If I recall correctly, the guy had a lot of products to sell.