A Cedar Falls woman has been arrested for allegedly stabbing her mother in an argument over dog poop, according to the Waterloo Cedar Falls Courier. 19 year old Keyante Evans was asked to pick up the dog poop in the back yard of the home on Spruce Hills Drive. She allegedly became upset and hurled a pot of boiling water at family members before grabbing a knife and chasing down her mother. Other family members tried to step in but the mother suffered a minor stab wound to the chest. Evans struck another person with a tennis racket so hard that it broke the racket. One family member also suffered a burn to the eye from the boiling water.