vignette: Sam in Atlantis [2/5]

The continuation of the Sam in Atlantis drabble series! *iz still working on a better title*

Title: Sam in Atlantis [2/5]
Rating: PG15 for language.
Spoilers: General Season Four spoilers and speculation.
Summary: In which Sam ponders McKay's new relationship and teaches Jack about the rules of Atlantis.

Notes: The first part(s) can be found here. 

( Sam still doesn't get why the rest of Atlantis puts up with Rodney McKay. )

( The rules are different here. )