As a member of the Escalator Safety Patrol, Jack randomly selects people and insists that they wear an orange safety vest while riding up the escalator, but then instructs them to come back down and return it.
Jack says he has an emergency and asks people if he can use their phone. When they agree, he talks about NON-emergency topics with no sense of urgency whatsoever and seems to never want to give the phone back.
We still don't know what made this guy so upset. Jack set up a free sample stand in Hollywood with crackers on display, but the crackers were glued to the papers so it made things very difficult for people.