Nah This One WasLMAO. talk about the funniest episode. period!
He waited a huge amount of time to kill Itachi and he learnt Chidori a few days ago which increased his confidence and after all hate overcame his general sense.Did he really think that? Sasuke had to know that Itachi mastered his Sharingan at 8 and was in the Anbu at 10 years old and become a anbu captain at 13!!!
Sasuke was very wrong to think a Chidori could have killed Itachi that easily...