Bender really dislikes the rain. He loves baths, hates the rain. I think it's because where he grew up it was very cold and windy on most rainy days. Bender just sits at the door and looks at you like 'yeah, you go out in it.' So we don't make him go out when it rains. He potties right in front of the toilet on those endless rainy days. We thought about puppy pads, but figured why bother...he's trying to go where we go, and it's easy to spot and clean up, so no harm no foul in our opinion. I might try getting him a rain coat though. It sounds like a nifty idea, although I think he'd need rain boots too, he hates getting his feet mucky.