That scene wierded me out too. I wonder if they were trying to give us some kind of forshadowing? Niki is my least favorite too out of all the wives - she's so competitive and nasty about everything. This last episode was my favorite so far though! I didn't get the ending with the alarm goign off though - did anyone understand the symbolism behind that? Was it b/c it was going off in three houses?
Also, has anyone seen this blog on the HBO site. Just came across it the other day.
http://boards.hbo.com/forum.jspa?forumID=700000143