workers show up at their place of employment to find the building dark and all the doors locked. they begin to talk to each other about what might be going on. several people think the business has gone bankrupt and the owners have left town. they decide that their only option is to vent their hostility in a public way. some of them start to batter down the door. others look for paint and brushes for graffiti. still others shout instructions to various people. in terms of collective behaviour theories, what are we witnessing?