I was lucky enough to be out of the crush in the only passenger seat, next to the pilot, and the low fuel warning light was flashing as we taxied out..........
That will happen when you are taxiing on minimum fuel and you turn the aircraft, causing the fuel to slosh around. When it goes
steady, then you have 25 gal. remaining. If you don't know what you're talking about, it can be concerning, but not in itself dangerous.