My only D'oh moments have been constantly clicking the wrong buttons. - mashing B to pick up items, trying to open menu with Y instead of X, and after CF trying to use my tools with L. (I used the nunchuck alot.) I also keep trying to walk with the D-pad.
Everything is counter-intuative for me except taking photos, which I managed 250 of. xDD
Happened to me on my first day. :/Just saying. I lost several hours of game play today from a slip of my hand.
Anyone else have d'oh! moments in the game?