I'm on Borrow My Doggy and walk a lovely little dog once a week. I am not an experienced dog owner at all. The owners leave her all day while they're at work and trust me with a key to go in and take her for a walk at lunchtime. Unfortunately she seems overweight, badly trained, and I've found out from the owner they give her lots of human food. Anyway I know this is none of my business, I enjoy walking the dog but she often does her business on the pavement in nice residential streets before or after the park or the woods where I take her, and often her poos are really loose ! try my best but the owners only supply plastic bags which end up smearing the poo all over the pavement. I often can't clean up properly and am embarrassed to leave the pavement in a mess. How would you all proper dog owners deal with this?