Oh, her planet had standing water. Well, technically, his did too just in very few places that were tightly controlled by very dangerous criminals. As far as I knew though there wasn't enough to swim in.

"I think you've probably got a better chance with whatever's in there than I do." Cobb couldn't swim and he had no powers besides a quick draw so he wasn't going to find out how well he would fare. "But it'd be smart to have someone watching."

Cobb wasn't going to push the issue any more though. She could make her own choices.

"What's a sleeper?" Because he had never heard of something like that.