It’s Jennifer’s worst nightmare!  In Wisconsin, 8-passengers were left stuck upside down on a roller coaster for hours because of a mechanical failure at the Forest County Festival in Crandon, Wisconsin, about 100 miles north of Green Bay.   The ride is called the “Fire Ball.”  It’s like a rollercoaster, except it’s just one big loop.  So normally, you go around and around over and over.  Unfortunately, the ride stopped during one of those loops.  So everyone on it was left hanging upside-down.  7 of the 8-people on board were kids.  It took over 3-hours before firefighters got them all down.  They say the ride recently passed an inspection, but that there was obviously some sort of “mechanical failure.”