In the 70's I helped found a volunteer ambulance corps that serves a very busy urban area. I became an EMT when you could be certified in a challange written/practical exam. I've done CPR dozens, yes dozens of times, both with and without equipment. In all that experience, I only had three sucessful rescitations. But heh, three is better than none. I don't carry gloves and a mask in my pockets, but they're part of my home/car/briefcase kits.