Dancers must have two extreme qualities
Intense desire , gritty fortitude , and raw courage .
. . . one two three , OK  , dancers must have three extreme qualities .

Dancers actually do break a leg upon the stage

At parties they are the flight of the hummingbirds . Amazing what they do .

Their tight limber bodies often make me wonder how I would do in bed with them

My ambition was always tied to a rope that held me back
Because  when I danced (after twenty-four bottles of beer)
It was on my face I always fell flat