"From their first home video; 'Welcome To Our Neighborhood'. This clip is from the portion in which the song 'Scissors' plays.
Slipknot used to have it uploaded in it's full quality and length on YouTube, but it has been privated.
Here's a link if it ever comes back: https://youtu.be/hIyZylF80Uo
Fortunately, there's a decent quality non-official upload of the Scissors portion still remaining: https://youtu.be/m1ETqAUit60"