Litter Boxes I have four ferrets ages 6mos - 1yr and they have ALL always used their litter box. I also have NEVER had to cut down the sides...they have always just climbed in (even when they were itty bitty babies) right now they have a tall covered litterbox and the entrance is more than 5 inches high. I do find however that they will not go in to use it together even though is is HUGE (16X18") [AC] [Posted in FML issue 1358]