Ouch. Consider all the jokes about friodes, LERs (Light Emitting Resistors) and SEDs (Smoke Emitting Diodes) as said...

Reminds me of the time I was working (sort of — it was one of those Guvvmint schemes) for a computer dealer. On one of my callouts I was presented with a defunct computer. Opened the case, and... there were lots of little scraps of plastic all over the place. And I couldn't find the m/b battery... yep, it had exploded. I had an "interesting" conversation with my boss over the phone for that one...