[This is so familiar, Don almost forgets how much of his history Derek doesn't remember. He sits in the sand and launches into a monologue of his current problem.]

Robert has a drug history. And a drinking problem. And he sort of relapsed during that last experiment. We've been fighting about it, but he just wrote me a letter explaining that drugs in his world aren't like in mine, and it's really not as bad as I thought. Maybe. But he still didn't use them responsibly, so I'm not sure it makes much difference. What do you think?