I would say, unfortunately, this is a very relevant subject, especially for cyclists. Anyone who has trained or put in the miles knows what is happening "out there." You can go weeks, months, even years, but, eventually the odds are you will interact with a certain "creature" that isn't very friendly, is having a very bad day while on meds, got a sunburned neck and you are IN THEIR WAY and preventing them from doing what ever it is they have to do, NOW!. We're not talking the four legged one, here.
Right now we may be cycling for the fun of it and what it does for us on all levels, but soon it may become our primary transportation. Most people, especially Americans, are in total, absolute denial and don't see what is right before their eyes. We are about to experience the perfect economic melt down. When this crash dwarfs the so called "Great Depression," people are not going to be very sweet out there on the road. Maybe it will be to dangerous to ride, but the topic of carrying a weapon, as disturbing as it might seem or some might want us to believe, makes sense.
However, the thought of shooting a pesky dog is what people who can't sprint have to consider. Now, that's sad.