No, random people are untrained. Are you implying that of all the people who get guns in this country that everyone is trained in their use? While many people are trained and have experience from Police, security and military, even gun clubs, there is little, if any checking, to ensure that you are trained to use a gun, to get a gun. so yes, the poster was correct, there are many untrained people with guns, its just that there are, I think, more people who own guns who are responsible and trained in their use, safety and care.