Scholes should of known better but i think the 2nd yellow was probably slightly harsh or unlucky but if you stick you leg out it doesn't take a lot for an italian to take advantage.
I never understand why players like Scholes put tackles in, it was the same as Gazza - all the ability but could not tackle to save their life. They should just stay on their feet and get behind the ball and leave the tackling for holding midfielders.