The man going deeper into the water gets David's attention. He considers carefully and then rises to step into the water as well.

"I've been to too many different worlds for me to ever get weirded out by this. My goal tends to be 'achieve the mission and get home' when I can."

Except hte last one. He had wanted to stay and be happy. Guess that wasn't happening.

"Higher beings aren't something we can always depend on."