Hello. You don't know me from Adam. Just bounced over here from the stargate_eps comm.

Anyhow, Carson's "Oh, I think I might have an inkling" hit two possible meaning for me:

1) It was killing him to watch Rodney go through what he was going through.

2) Carson's a former addict.

So, no, it wasn't just you. I think it's intentional. Whether we'll ever see that followed up on is another question entirely, of course.