So, I thought it was peculiar that Spanish riders get upset that someone catches their break away group. Today Valverde gesticulated at Nibali, as the latter joined the lead group after a descent. Nibali must not have been feeling good because he eventually shook hands with Valverde and sat up to wait for the peloton.
In stage 13, Luis León Sánchez was also upset when he was caught and passed by Wiggins leading Boasson Hagen. Since when is the peloton not supposed to catch a break away? Is that really how they want to win a stage?
Nibali joined the breakaway group very early today. Since he was a GC contender Sky would have been forced to chase down the breakaway and Valverde would not have gotten the win. I think Nibali hadn't really planned to get away, but did because of the fog.
The only chance for some riders to win the stage is in the breakaway, so yeah, they are not happy when they get caught.
Veronica
I get being upset. What I do not get is gesticulating and protesting (as Sánchez and Valverde did). It's the first race in which I see that.