Has anyone else had their dashboard lights shorted out by motor oil?

Here is one for the books! My old Mercedes has a mechanical oil pressure gauge. It developed a leak and shorted out my instrument panel lights! I had to spend several hours repairing burned traces on the circuit board it shorted so hard. I thought oil was supposed to be non-conductive, but apparently the carbon (especially in the case of this Diesel) is quite conductive. What other kinds of freak failures have you guys experienced in your modern, or not so modern cars?