This is why i use a rideing mower, I was mowing my yard in cali one day and what do you know my neighbors threw some copper wire in my yard,couldnt see that little wire. It got lodged in my ankle bone. After that i was scared to use or get near a walking mower. most have that flap on the back side and any thing could slip through the bottom flap or through it for that matter. It was like bullet hit me! that shit hurt i couldnt even walk.lucky it didnt shatter my ankle bone!