What to do if you are already there with no equipment?
What will most people do?
The concept of 'Zero Responders' came about during the London 7/7 inquest.
A Zero Responder is a spontaneous helper!
For example
Usually members of the public, buy may be employees with first aid training (who are there but not with the purpose of providing first aid services)
Witnesses or bystanders of an incident who come together with a 'shared social identity' (everyone together, including those who may have been affected helping out in some way)
Mass Panic by Zero Responders - Mass Panic is a myth - studies have shown the majority of people don't panic and want to help