Have you ever been threatened with a gun or knife?

Yes, once. in 1985, my wife and i were held up at gun-point in Los Angeles outside our apartment. We had just returned from a 3-say weekend away, and because the neighborhood had no off-street parking, we'd had to park at the end of the block, several (small) buildings away from our building. It was about 10:30 in the evening. I was leaning into the back seat of the car to retrieve suitcases or something, and when I pulled out, there was a man on my right side, pointing a gun at my head, telling me not to look at him and to give him all my money. i didn't have any money, so he took my plain-gold-band wedding ring. he then went to the other side of the car, approaching my wife, and told her the same thing. he took her wedding band (that had small diamonds about 3/4 of the way around its circumference, her watch (which was a pretty nice one) and the $300 US we had let over from the weekend. I was hyperventilating the whole time. he "marched" us down the block away from the "scene of the crime", toward our apartment, as it turned out. i whispered to mrs mark in irvine not to look at the apartment and to keep walking. at some point within a minute or less, i realized that the man had disappeared. we walked to a nearby big street and called the LA Police. They showed up about 30 minutes later or so, took a report from us, and that was the last we ever heard from them about the incident. i was paranoid for several months afterwards and whenever i saw somebody in the neighborhood who looked (superficially) like our assailant, i (irrationally) was convinced that he'd come back to "get us", and i immediately began to think that i should run over him in the car. eventually the paranoia passed. we moved out of LA to the suburbs a little over 12 months later.