Regarding the dog with the plastic swimming pool... We got one for my service dog for the same reason. It rarely gets "hot" hot here, but when it does... well, there are no real dog-swimming places, so we had to make do. He liked water, so that wasn't the problem. Got him one of those cheap plastic ones from Walmart or something, fill it with a couple inches of water, and let him go lay in it, roll in it, etc. Until he discovered a new toy. One day he discovered a little garter snake in his fenced area and danced around it, barking and trying to herd it for a bit. And then picked it up in his mouth. Perhaps a bit startled that it kept wriggling, he accidentally dropped it into the pool (empty at that point, I hadn't refilled yet) and then ran around the pool barking as the snake wriggled around in the pool. After about 10 minutes I scooped up the snake, inspected it - no ouchies - and gently set it free on the other side of the fence. After that, we had to check the pool for snakes before refilling. Found at least four more in there before that pool went to the great kiddy pool heaven - and we didn't replace it after that for various reasons.