A Portland woman whose hair had reached the small of her back since childhood is suing Walmart and a shampoo maker for $10,000, claiming her hair became so tangled after using the product that she was forced to cut most of it off. Jennifer Fahey’s suit states she bought a bottle of “Equate Everyday Clean Dandruff Shampoo” at a Portland Walmart, and on Oct. 8 her hair became irreparably tangled within seconds of massaging it into her scalp for the first time. “She was not able to remove the knots and as a result she had to cut a large portion of her hair from the top and back of her head,” states the suit, filed Monday in Multnomah County Circuit Court by Portland attorney William Ball.