my favorite one has always been this one classic
In November 2000, Mr. Grazinski purchased a brand new 32 foot Winnebago motor home. On his first trip home, having joined the freeway, he set the cruise control at 70 mph and calmly left the drivers seat to go into the back and make himself a cup of coffee. Not surprisingly, the Winnie left the freeway, crashed and overturned. Mr. Grazinski sued Winnebago for not advising him in the handbook that he could not actually do this. He was awarded $1,750,000 plus a new Winnebago. I might sue General Motors for, in 1996 not informing me that a Vauxhall Nova will not go round a ninety degree corner at 60mph and you will end up needing to do Breath Tests visit police Stations pay for Damages to Buildings and a new Car
some funny ones here
http://www.snopes.com/legal/lawsuits.asp