here is a text tutorial on how to freeze george on the slide.
Tutorial:
1. Get VR-11
2. Stand at the top of the Slide
3. Piss him off with your second gun
4. Calm him down with the VR-11
5. Piss him off with the VR-11
6. When he's yelling/yielding calm him down with the VR-11
7. Quickly drop down the slide
Enjoy