Knight in Rusty Armour

Long ago in days of old
There lived a knight who
Wasnt quite as bold
As a knight should be
He rode an old grey mare called Bess
Searchin for a damsel in distress
Just to see if he
Could set her free
See the knight in rusty armour ride
To her aid
Trusty sword is hanging at his side
With a rusty blade
Up the tower steps he sneaked
But as he moved
His rusty armour squeaked
Such a mournful note
And all the sentries at their posts
Thought it must have been the castle ghost
They jumped for their lives
In the moat
So the knight in rusty armour won
His fair maid
Had no need to draw his trusty sword
With a rusty blade
As he bent to kiss his bride
He found that he was
Rusted up inside
In his battle dress
And I cant guess
How they still got ma