We are having a small (18') above ground pool installed today. I plan on adding a deck so kids and dogs won't have to climb a ladder to get in. A friend on mine says not to let Radar in there because she knows of more than one person who has had the liner torn by their GSD. Anyone have any experience with this? Radar will already climb the small laddar to our trampoline to get up there and play with my kids so even without a deck I can see him climbing the laddar to jump in. He has been swimming once (in ground) and jumped in on his own about 6 times to get a ball but then seemed to want out as soon as possible. Would a dog ramp to help them out keep it from getting torn? What about the nail covers that you glue on their toenails? Help!