Seeing this reminds me of the last model jet fire I saw at our local field. I was the first one to the crash site and expended my personal fire extingisher. I didn't think anything about the cost of recharging until I got the bill for $35.00 a couple of weeks later.

The owner of the aircraft never ask about my costs for recharge and if it had been my plane I probably wouldn't have thought about the cost to the people who helped fight the fire either. Just a thought, if someone helps fight your fire, remember them later.