"No Padfoot, either," Sirius mentioned even though it didn't need to be. He was never particularly attune with what was necessary and what wasn't.
"Do werewolves like water?" he wondered out loud, hoping someone might know. Sirius didn't remember any textbooks saying lycanthropes were adverse to water during their transformation or not. Maybe werewolves were a bit like felines in regards to water. Padfoot loved jumping in the water and doggy paddling, particularly when it was hot outside, but maybe a werewolf would have different preferences of the aquatic variety.
To explain his musing, Sirius suggested, "We could have everyone take a swim for the night. It'd be better than the alternative." Which was to say, getting eaten, maimed to death, or bitten.