Reminds me of a verse from a Benny Hill song "What a world", also mentioning the last man:

Now the button was pressed, the world destroyed leaving just one solitary man,
And at the top of the Empire State Building his lonely existence began,
But his loneliness was too much so he jumped and he fell like a bird with one wing,
And as he passed the seventh floor, he heard the telephone ring.
Chorus:
What a world, (what a world) what a place, (what a place)
Ain't you glad you're a member of the human race.
Nigel