It may have been another bureaucrat who produced the bubbles. Bureaucrats love producing bubbles. Those bubbles are money makers. On this thread we maybe are about to stumble into what bubbles are hazardous and what bubbles are not. One thought does come to mind ... There are no hazardous bubbles if a bureaucrat produces the bubble? Kids producing bubbles are entirely different. Lock up all bubble making apparatus played with by the kids!
These were armor-piercing bubbles.