I can't really think of anything, the only thing I noticed are spirits in 201, 202 and 203. I hope they're going to reveal what happened to real Stinky! This sub-plot, together with Bosco's paranoia being more than reasonable, is making Season 2 even funnier and curious. I'm sure we'll see other spirits/ethereal characters in the near future.
"Military intelligence": two words combined that can't make sense.