I used to carry a multi-tool that included a chain tool. But, I've down sized to a Lezyne RAp-6 which does not. However, I still carry a spare quick link. Enough wiggling and bending will see a determined cyclist get the other end of the outer plate off the other pin. Then it's a matter of getting the pin through the inner half link. Between rocks and fences and the occassional leatherman or pliers from a passing motorist or farm, I will find a way to get the pin extracted from the remaining inner half link. I have little doubt. My will to ride home instead of walk is that strong.