Performance artist groups who use the element of surprise:

1) my ALL TIME FAVORITE GROUP: Prangstgrup. This is a guerilla-style theater group from Columbia University. They have done some excellent staged work with hidden cameras. Please look at the Archived Videos and watch “Subway Lecture” (above) features over-specialized academes giving lectures(with handouts!) to strangers on the train. “Library Musical” is also great. Oh, and “Silent Dance Party”. They take forever to load but it’s worth it.

2) SF0 (more about this soon)