[Racer26]

Later on, dealing with the same problem (I believe 1 match later, IIRC), someone (I think this same volunteer) went up the ladder again, and the arm was not fully locked in position. THREE other volunteers came running and had him down and had the safety risk fixed in seconds before sending him up again.

FIRSTs focus on safety IS getting through to people. Sometimes circumstances still cause us to forget details. My guess is that in the heat of the moment, this volunteer simply hadnt noticed that the arm had failed to lock in. Luckily, others noticed, and did their part to remove the risks.