My Gracie never misses when she pees.It's always on the pad, however, she is very concerned about stepping in the pee. She will start out pooing on the pad and many times it makes it on there but if she has trouble getting it out right away she may move around a little and it ends up over the edge or near by. I really don't get upset about it. She tried to do it right but sometimes it just doesn't work out where we want it.