Any firearm using modern cartridges can be. However, it is an extremely dangerous thing to do with any firearm, and this should not be attempted.
In short, yes, they do. Some more than others.
No. Cartridges in these pistols headspace on the mouth of the cartridge.
Most could be loaded and fired about 5-6 times before the flint cracked or broke.
Well, most guns are waterproof in one sense of the word- they do not dissolve in water. Can it be FIRED underwater? Yes- but whether it can be SAFELY fired underwater is another matter. Guns that are fired underwater are subjected to pressures that they were not designed for, and the bullets go only a short distance. If a gun has been submerged under water, it should be drained, dried, and lubricated.
All firearms will develop a buildup of carbon and fouling from use, and will eventually require cleaning.
America's Court with Judge Ross - 2010 Your Cat Got Me Fired The Roof Is Underwater 3-113 was released on: USA: 2013
For most pistols, it can damage the firing pin. This is not true for all pistols. Recommend buying a "cap" cartridge that is a dummy round that can be fed and dry-fired in an automatic pistol without causing damage.
It depends on the pistol and the quality. Some manufacturers recommend changing the springs every 5000-10000 rounds. I have Sig pistols that have 30,000 rounds fired through them with no problem.
Nobody shot the britannic It was the Luisitania that was torpedoed the britannic struck a German underwater Mine
yes, they trained anywhere, on a car, in a boat, even in the trenches they fired pistols at targets.
Is this an odd-ball automatic pistol that is fired by squeezing the grip and has no trigger? Pistols of the World says it was made in France by an unknown manufacturer.
Potentially, yes. It's nowhere near as effective as shows such as CSI would lead you to believe, though.