Koas... i noticed that too... i felt bad for Rudy... Jeff Probst was right... he's 75... and was kicking it a bunch of people less than HALF his age...
if Rupert had been smart... he and Rudy should have gone to Ethan and tried to sway Ethan to vote off one of the girls...
Spoiler:
Jenna leaves next... and then Rob C.
that is what my "sources" tell me... 
Possible Spoilers above. Daval