Some of these "consumer watchdog" things get a little ridiculous.
A small independent shop in Sacramento, one with a good local reputation, was the victim of these shenanigans.
They (the show producers) rigged a car by going up under the chassis and unplugging a portion of the wiring harness.
Then they take it in to the shop, and it took the shop a good 45 minutes of poking around to find out what was actually wrong, which is certainly not outrageous. Keep in mind this is just a small independent shop, not one with an infinite level of experience with every single vehicle that comes along.
Then the repair shop charged them for the minimum one-hour of shop labor, and for a new connector retainer clip (which the producers broke off/lost, when they pulled apart the harness).
Then the producers proceeded to make the shop out to be bad people because they A) charged money for their time, and B) charged them for the part, which they thought was not "necessary". Never mind that it holds the connector together, LOL.
They then grilled the shop owner as to how the connector could have come loose.
The shop owner said, "Well, sometimes you will run over a branch in the road, that could do it I suppose...other times I've seen kids get under vehicles and yank on things, I really can't say for sure..." And then they try to make it look like the shop owner is somehow being dishonest in his statement...
Crazy stuff...