Dont Waste Your Time

I learned the term Go For Smoke from some EE friends about 30 years ago. Hairline traces were both problem and opportunity for fun with them. They would apply a few amps of 12V to supposed to be different traces on the board to overload the hairlines. When the glue under the trace goes with it, you get smoke! So the routine was while one wielded the contacts, the rest chant "Go for smoke! Go for smoke!".

Did I mention we were young back then?