A lot of times, if one thing fails, you expect a bunch of things to start failing
If I fail at something in a dream I either straight up forget about the fail, or I think of something retarded that was the reason that I failed.

I realize I am dreaming. I want to do chidori and I do the hand motions for it. I don't get anything and I try again. This time knowing that the reason I failed the first time was because my mouth was open.