A friend's iPhone cable was working intermittently and he asked me to take a look. The broken wire was hanging on for dear life by a speck of insulation. So tiny.
It was a bit of a challenge to add the heat-shrink with such little space and not have it shrink while soldering so close. Forceps come in handy as a heat-sink. I'm sure that's why they were invented, or at least that's the excuse I used to buy it. I'm sure two would be better...
I didn't need an excuse to own a shifting spanner and a set-square, but they make nice heat-sinks too in a pinch.
One happy friend.