Every dog we ever had visit this garden has gone in the pond at least once, Every visiting dog, every owned dog, every pup we ever bred. At this stage we are used to it, so when we have a dog visiting we all sit in the gravel garden by the pond, armed with dog towels and await the inevitable. The new dog(s) charge around exploring, maybe playing with resident dogs and eventually the play gets that bit too distracting or the draw of this new, unfamiliar 'thang' is too strong and there's a plop or a splash.
Dogs can probably get out again easy enough as there are beaches and edge planting, but Mum or Dad generally lean over, grab the wet collar and haul the unfortunate sodden beast out onto the gravel for a run around, shake and towel off. Then it's just a question of allowing drying nature to take its course before the dog is brushed down, good as new, all be it minging of pond. Better this system than we sit somewhere else and we are not immediately aware that the splash has happened and the dog flounders around getting scared or, God forbid, drowned, which would rather dampen the party spirits.
So here is a picture of Boris, who visited again tonight with 2CV Llew, freshly dunked while Rosie (an experienced dipper) sleeps contentedly in Llew's arms. He'll do. He can come and stay with us in June. We'll cope!