For the last couple of years, Rob Olson has held the Breathe Easy Music Festival to benefit the Cystic Fibrosis Foundation on the lush, green, sprawling 40,000 square foot lawn behind his home in Lake Elmo, Minnesota. You see, the charity is something Rob considers very near and dear to his heart since his two sons both suffer from CF.

Well, this year Rob noticed there were some nasty unwanted weeds sprouting up among the hearty blades of grass which was totally unacceptable. So, off he went to his local gardening store and consulted with with the landscaping experts there who recommended a weed killer called Ferti-lome. "That'll do the trick," they assured Rob, who bought five bottles of the stuff.

And it did do the trick. Those pesky weeds were history. Unfortunately, so was the once lush green grass which was now also dry, brown and very dead.

Apparently, Rob had overlooked the part of the instructions for the Ferti-lome that explained the "product is not supposed to be used on grass or other 'desirable' garden plants." Now, in his defense, that important information was buried in an eight page manual attached to each of the bottles and, as Rob rightly points out, the warning really should be printed in big bold letters on the label. Besides, you would think that the so-called "experts" at the gardening store would have known better.

Needless to say, the lawn is in no condition for a benefit concert, so it has been canceled. But Rob has learned two important lessons: read all instuctions for potentially harmful products carefully before you use them and never trust the opinions of part-time employees working for minimum wage.

Source: Yahoo!News

Check out the report on this story from CNN affiliate KARE.