Lilly is attempting to drive our family stark raving mad. Over the past few weeks, she had become very, very slow about going potty. She will go out into the backyard, always on lead, and literally sniff and play for 10-15 minutes before she does anything! There are times when she is desperate to poop, you can literally see all of her muscles clenchign and her butt poking out and she still insists on dragging herself an additional 5-10 feet to find the perfect spot! Now, 90% of the time, we have a nice walk around the yard afterwards, so it isn't as if she knows that pottying ends her fun time outside, but there are times that we are in a hurry and just need her to go so we can get moving. For the past week, she is getting a click and treat as soon as she goes, but it hasn't even made a dent. The older she gets, the slower she seems to get. It isn't a physical issue though, if it is raining or the wrong temperature outside, she does her business quickly and efficiently. She is getting a high value treat for going. What else can I try? For reference, she is a 13 year old spayed female. She has been trained since 6 months. Seriously, during the time it takes Lilly to pee and poop, Radar has peed no less than 8 times, and usually pooped more than once. He's full of it, what can I say.