I just joined this group! I had the dreaded first flat back tire this weekend. Fortunately, the group I was with had a certified bike mechanic in the group (these people serve as volunteer bikepath patrols). The tire had barely started to hiss and they were calling for the mechanic, who came rushing back with a mission to perform! They whipped out a camera to document an "incident" on the trail and everything. I tried to look like I was helping, but he had a new tube in before I even knew what hit me. I at least had the tube and the right equipment with me. But that's the way to get a flat on the trail! Since I didn't actually change it myself, am I still technically a tire virgin?? Or is a flat a flat, no matter how I got it fixed?