When we're not training for marathons my wife and I usually run about 4-6 miles a day on weekdays and usually a little longer on weekends. We live in a relatively safe part of town, but we run early in the morning when it's still dark and have had run-ins with loose dogs and some suspicious characters on occasion. I would like to start carrying on my runs, but as you long-distance runners know, weight is a huge concern. I'm wondering, what gun do my fellow INGO runners carry and how do you carry it?