Callen and Sam are bonded forever. There's no trust problem between them, even if that story Hetty made up was better than anything they've done in real life.
Callen: Is there a military angle to any of this? Hetty: No, but Detective Deeks is still the Liaison Officer with the LAPD, which makes him about as close to one of us as it gets.
(Hetty approaches Callen as he is sleeping, he wakes up staring at Hetty) Hetty: Did you catch him this time? You were twitching like a sleeping dog. Callen: Well, you now what they say about sleeping dogs. (looks at Hetty)
