One of the lately famous blunder is the one involving the sneakers known as “Air Jump”. Engineers believed their innovations would shake the world up, but shareholder´s pressure to sell the product ended in disaster.
Air Jumps can make you jump unbelievable lengths. Some sneakers started to explode due to some minor design flaws, leaving a trail of crippled people during the first weeks they went on sale. Those which didn’t explode, created a blast when landing capable of hitting everyone close as if it were a riot grenade. That’s why the company had to withdraw them from shops.
You can still get a pair in the black market.