Years ago at the RS distributors i was shown a Fluke 77 meter they had recieved back from the Corporation, simply marked as "Faulty". Now, with the leads missing the probes on both, and being simply bare wire ends, you might be suspicious, given that the meter case looked like a truck had driven over it a few times, in mud, on a concrete road, and it was missing the holster completely.
However, it did power on, and the display simply showed some random segments, and faded away. Shop owner took it apart, and we both looked inside. Never seen a copper coated case before, and even odder was this was on top of the foil shielding there as well, Battery was fine, checked on another meter and load tested with battery tester, and it passed with flying colours. Fuses were both perfect, and original ones as well. PCB however was slightly different, the entire copper track area around the input side was totally missing, leaving only components there on the landings, and with clear PCB where the traces were.
Turned out that some sparktrician had tried to use this meter to measure the primary side of an 11kV substation transformer, and this had blown the 30A fuse in the supply line. Sparky survived mostly undamaged ( well, no more damage added), but this 2 month old meter was not covered under warranty. Never Done Correctly simply put in a purchase order for a new one.