Corgi question #2: Does anyone else's corgi have any of these odd behaviors concerning water?

• flicking water from his water bowl into his dry dogfood (and the kitchen floor)
• "pulling over" on walks whenever we pass a stream, just to wade in and get his belly wet
• lying down in mud like a hog

We think that part of Dewey's attraction to water is that he seems to hate hot weather. We've only had him for a year, but noticed a marked difference in his behavior during hot weather - much more lethargic. I guess that's to be expected, but our previous dog was a golden retreiver and she didn't seem to deflate during the summer like Dewey does. I guess Wales has a much colder climate than Georgia!