Switching on radar, or an anti-aircraft gun firing a single salvo, now brings down a hail of bombs on anything deemed threatening, from command bunkers to radar stations, and even anti-ship missiles.
On his instructions, Steinway's chief technician shaved the piano's hammers so they would be even lighter, and rearranged some parts so that a single note could be repeated in an almost machine-gun-like fashion.
Single-shot rifles that require you to physically reload the gun may not do people a lot of good when they are facing multiple criminals or when their first shot misses or fails to stop an attacker.
But many of them also recognize that it's not only the high-profile mass shootings that are of concern here, it's also what happens on a day-in-day-out basis in places like Chicago or Philadelphia, where young people are victims of gun violence every single day.