I would propose that you require a certain number of business cards from other conference attendees that you did not know prior to attending. More strategically, you need cards from your rank and higher and the follow-up strategy for that contact.
Shark activity has increased in recent years presenting an opportunity to educate the public on how to control massive bleeding after shark attacks.
It's important that children know what to do if they are faced with an emergency, because a supervising adult may not be nearby or may be incapacitated.
Budgets for emergency management and Emergency Medical Services can be particularly tight, especially during times of economic strife. Ambulance companies can certainly benefit from the donations of ambulances and other emergency response vehicles.