I read it in a book once.
3 seconds sound clip from the Shrek (2001) movie soundboard.
You can hear this line at 00:32:42 in the Blu-ray version of the movie.
Quote context
[...]
- Donkey, two things, okay? Shut up.
- Now, go over there and see if you can find any stairs.
- Stairs? I thought we was lookin' for the princess.
- The princess will be up the stairs in the highest room in the tallest tower.
- What makes you think she'll be there?
- Cool. You handle the dragon.
- I wish I had a step right here. I'd step all over it.
- Well, at least we know where the princess is, but where's the... Dragon!
[...]