given that they're short on manpower the guy in the flip flops is using his head by "multitasking" enabling him to do more in less time. by being comfortable & wearing less-restrictive, cooler clothing he's able to rehab as he's putting out fire. rather than be criticized & chastized he should be commended on his dilligent "time management", he's obviously seen other f/f's suffer from heat exhaustion & he's taking the proper precautions to not be one of them. if only he had one of those water backpacks bike riders wear he could also be hydrating himself.