Didn't Rob's uncle go take a piss before this went down though?
I'm assuming he's still alive right?
I was wondering the same thing. It was weird timing. I guess we'll get the answer next week. Hopefully.
Well the room was full of Stark men, they got caught offguard and slaughtered, and as for them being unarmed. Robb and crew assumed they would be safe under his roof due to guest rights (eating bread and salt).
Also, the Kingsguard was drunk as fukk. Bolton specifically says that he's not drinking because it dulls the senses.