Also, you have to look at the level of risk. Is pumping kerosene onto an aircraft incredibly dangerous, compared to much of what goes on in aviation? The worst I’ve heard of is a fuel spillage that required disembarkation and cleanup. We did have an accident a long time ago where the refueller was killed but that was because they mis-attached the hose on an aircraft that had just arrived on stand: the fuel misted out onto the engine which had been shut down less than a minute before and made a mini fireball. I don’t think the doors had even been opened to let the pax off...